The chief constable of South Yorkshire is to face MPs about the scale of alleged sexual abuse of young girls in the county.

It comes after The Times said confidential police reports referred to widespread abuse of girls by Asian men.
Chief Constable David Crompton has been summoned to appear before the Commons Home Affairs select committee.
He said: "I will fully assist the Home Affairs select committee in answering any questions they may have."
Mr Crompton had already been due to face the committee to answer questions over the Hillsborough tragedy.
Keith Vaz MP, chairman of the Home Affairs select committee, told BBC News he wanted answers to the newspaper's claims on abuse.
He said: "The select committee has been conducting an inquiry into grooming for some time, since the first time these revelations were exposed in The Times.
"It would be appropriate for us to have [Mr Crompton] to deal with some of the points that have been raised.
"I had asked David Crompton to come in and talk about the aftermath of Hillsborough and what his force is doing about it.
"Therefore it is appropriate following these revelations that he should also tell us what South Yorkshire police is doing and what appears to be a decision by agencies not to work together to try and uncover this criminality."
The investigation by The Times - with access to confidential documents from the police intelligence bureau, social services and other organisations - alleged widespread abuse.
The newspaper said a confidential 2010 report by the Police Intelligence Bureau detailed "a significant problem with networks of Asian males exploiting young white females, particularly in Rotherham and Sheffield".
The paper claimed that in another confidential report in 2010 from Rotherham Safeguarding Children Board "there are sensitivities of ethnicity with potential to endanger the harmony of community relationships".
South Yorkshire Police has emphatically denied withholding information about the scale of sexual exploitation of girls by gangs of men.
In an earlier statement the force said: "South Yorkshire Police is recognised as leading the way on what is now being recognised nationally as a problem and to suggest that the force and its partners are deliberately withholding information on the issue is a gross distortion and unfair on the teams of dedicated specialists working to tackle the problem."
It said the force was "working with local authorities, social services and NHS on several live investigations, two of which are large and likely to lead to more prosecutions; we will act when we have the evidence".
The statement added that The Times was "wrong to suggest a lack of commitment is shown towards the problem as our record shows".


A man from Croydon has been charged with murder after the death of his partner last month.

Pawel Sroka, 33, of Meadvale Road, Croydon, was charged on Saturday with the murder of his 29-year-old partner, Joanna Trojniak, of the same address.
A special post-mortem examination on 24 March gave the cause of death as a stab wound to the chest.
Ms Trojniak's next of kin have been informed. Mr Sroka is due to appear at Bromley Magistrates' Court on 4 April.


Homes have been evacuated and trains have been disrupted due to a security alert in Lurgan, County Armagh.

It follows the discovery of a suspicious object in Victoria Street.
Ch Supt Pauline Shields said: "The alert began after a call was received suggesting a device may have been left in the area.
"Officers are conducting a thorough search to ensure the safety of the public and investigations into an item located earlier are ongoing."
She added: "As this alert continues, we are thankful for the cooperation and support of local people, a number of whom have had to leave their homes."
Officers have warned residents not to touch anything suspicious.
The road has been closed to traffic and a police helicopter has been used in the security operation.
Translink said the 15:20 BST train service between Dublin and Belfast train will terminate at Portadown as a result of the alert.
Affected passengers will be taken to Belfast by bus.
Upper Bann MLA John O'Dowd, from Sinn FÃ©in, condemned those responsible, saying they had  "brought nothing but disruption to the local community".
"Those behind this alert are not representative of the people of Lurgan and should stop these pointless actions immediately," he added.


Ten Scottish employers who have failed to pay the national minimum wage have been "named and shamed".

The Department for Business Innovation and Skills (BIS) has released a list of 92 businesses throughout the UK who have broken minimum pay rules.
The arrears owed by the 92 employers to their staff has been calculated to be over Â£1.8m.
Business minister Nick Boles said there is "no excuse" for failing to pay staff properly.
The Scottish businesses on the list were:
Mr Boles said: "Our policy of naming and shaming employers who ignore the law means there are consequences for their reputation as well as their wallets.
"In April we will introduce a new National Living Wage which will mean a pay rise of over Â£900-a-year for someone working full time on the minimum wage and we will enforce this equally robustly."


UK small satellite manufacturer SSTL has released details of the spacecraft it launched in July, but about which it gave few details at the time.

Codenamed Carbonite, the 80kg platform filled some unused mass on the rocket that put up the company's new high-resolution imaging constellation.
It turns out the additional passenger was a demonstrator for a new type of quick-build, ultra-low-cost satellite.
Carbonite uses an off-the-shelf camera and telescope to take videos of Earth.
It acquires still pictures as well. Both modes show features on the ground down to a size of 1.5m.
However, if flown in a 500km-high orbit, this would be a 1m ground-resolution.
Carbonite's mission was revealed at last week's World Satellite Business Week conference in Paris, organised by Euroconsult.
The intention is to compete the platform in the emerging Earth-observation market for daily, fast-turn-around imagery.
This is a market being targeted currently by a number of Silicon Valley operations, including Skybox-Google and Planet Labs, and requires the use of multiple satellites in orbit.
Carbonite-1 was built and tested in six months.
Its camera and telescope, which has a 25cm mirror, were both bought online and then adapted so they would cope with the harsh environment of space.
It also incorporates a drag sail, which will be deployed at the end of its mission to pull it out of orbit.
SSTL says more Carbonite missions are already in development.
The goal is to reduce the mass to 50kg, and to get the build time down to under three months.
The cost will have to be lowered, too. The aim there is to turn Carbonites out for well less than a million pounds.
"That will depend on what level of sophistication the customer wants," said Luis Gomes, the head of Earth observation at SSTL.
"What Carbonite is about is filling in the blanks, and doing it in a timely way," he told BBC News. (If there is cloud in the way, the ground cannot be seen by an optical satellite).
"There is a lot of hype out there about some of these new systems - that they can do everything.
"No, they can't, but for certain applications, they will nevertheless perform a role in supporting more capable constellations."
SSTL has not released publicly the imagery acquired by the demonstrator in the last few weeks.
The Guildford company says it has been busy getting its own new DMC3 imaging constellation ready for operation and wants more time to work with the Carbonite product before showing it off more widely.
For those wondering where they may have heard the word "carbonite" before - one use was for a fictional substance in the Star Wars film The Empire Strikes Back.
The material was used by the Empire to freeze the body of smuggler and rebel leader Han Solo.
Jonathan.Amos-INTERNET@bbc.co.uk and follow me on Twitter: @BBCAmos


A mother who killed herself and her two children was depressed because she mistakenly believed her eldest daughter had cancer, a coroner has concluded.

The bodies of Marta Galikowska, 27, and daughters Maja, five, and Olga, one, were found at a house on Sherwin Road, Stoke-on-Trent on 12 October last year.
The mother and girls were pronounced dead at the scene.
Coroner Ian Smith concluded they died from stab wounds and the girls were unlawfully killed by their mother.
He also ruled at North Staffordshire Coroner's Court that Mrs Galikowska committed suicide.
In a statement, Marcin Galikowska paid tribute to his wife and daughters.
"Marta was a fantastic wife and a loving mum who worshipped our daughters Maja and Olga," he said.
"My wife was a very special person who lit up my life. Maja and Olga were wonderful children whose smiles still shine brightly."


St Mirren have signed full-back Gary Irvine following the 30-year-old's release from Dundee.

Irvine spent three seasons with St Johnstone before a move to Dens Park in 2010 but he has only featured in seven games this campaign.
He has agreed a deal until the end of the season, with the option of another year.
Left midfielder Alex Cooper has also joined the Buddies after securing an exit from Falkirk.
The 24-year-old has signed on until May and both of the new arrivals will be in the squad for Saturday's Championship home fixture with Alloa.
Meanwhile, midfielder Lewis McLear, 19, has joined Stirling Albion on loan until the end of the season.


Division Two side Essex will have England captain Alastair Cook available for their next County Championship match against Kent.

The 31-year-old opener is to make his fifth Championship appearance of the season in the game starting on Sunday.
Cook has not played cricket since England completed their 2-0 Test series win over Sri Lanka on 13 June.
Pace bowler Stuart Broad is also expected to return for Nottinghamshire against Lancashire at Trent Bridge.
England's next Test, the first of a three-match series with Pakistan, starts on 14 July at Lord's.
Cook was in fine form when he was first made available by the England and Wales Cricket Board for Essex's first four matches this season, hitting 523 runs in seven visits to the crease, including three centuries.
His average of 130.75 remains the highest in the Championship.
"After his contributions earlier in the season we are pleased to have him back in the fold," said Essex coach Chris Silverwood.
"It is always a bonus to welcome Alastair back. We never put much pressure on him when he comes back. We are just grateful to have him around the squad. Hopefully we hope he can make an impact on his return."
Essex's 'second against first' home meeting with Kent pitches the former Division Two leaders against the side who overtook them on Wednesday with a draw against Derbyshire.
Kent remain unbeaten in the Championship this season, having now won twice and drawn six times since their total abandonment at Worcester in the opening week of the season.
Essex will resume Championship action after an 11-day break on the back of their first defeat, against Leicestershire.
Essex and Kent also meet in T20 Blast action at Chelmsford on Friday night (19:00 BST). It will be a second game in 24 hours for Kent, who are scheduled to host Sussex at Canterbury on Thursday night (18:30 BST).


Tokyo Electric Power Company (Tepco) is to receive 900bn yen ($11.5bn; Â£7bn) in bailout funds after the government approved its business plan.

The funds are part of the government's bailout plan for Tepco, which has just reported a six month loss of 627bn yen.
The earthquake and tsunami in March damaged its Fukushima Daiichi nuclear plant, resulting in radiation leaks.
It may have to pay $100bn (Â£62bn) in compensation claims relating to those leaks.
About 80,000 people living with 20km (12 miles) of the Fukushima plant were forced to abandon their homes after the radiation leaks and many businesses were forced to shut down.
Tepco reported a net loss of 627bn yen for the six months from April to September, due to the costs of dealing with the crisis at Fukushima.
That figure compares with a net profit of 92.3bn yen in the same period last year.
The losses, coupled with the huge compensation claims it faces, had raised concerns about the long-term prospects of the company, prompting the government to step in to bail out the company.
The government set up a special fund to help Tepco compensate the victims and maintain its operations.
However, the government had asked the company to submit a business plan indicating how it intended to turn around its fortunes, in order to receive the funding.
"I urge Tepco and the bailout fund to implement sincere compensation and thorough restructuring, taking into account that they are borrowing a massive amount of money from Japanese citizens," Japan's trade minister Yukio Edano said.
The company submitted its proposal last week, saying it would help it cut almost 2.5tn yen in costs over the next 10 years.


A general strike has paralysed transport and shut schools and hospitals across Italy, as workers protest against labour market reforms.

Scuffles broke out between the police and some protesters in the northern cities of Milan and Turin. Rallies took place in all major cities.
Trade unions say the government's reforms would endanger job security by making it easier to dismiss workers.
But Prime Minister Matteo Renzi says Italy needs mobility of labour.
The centre-left Democratic Party (PD) leader will have to find a way to overcome the striking unions' opposition - something his many predecessors failed to do, the BBC's James Reynolds reports from Rome.
Mr Renzi is under pressure from his European partners to revive the Italian economy - Europe's fourth largest - which is mired in recession and laden with debt.
His flagship reform is a "Jobs Act" aimed at loosening workplace restrictions and reducing Italy's 43% youth unemployment.
The unions say existing regulations are necessary to protect workers from being sacked by unscrupulous companies. They fear the spread of a "hire-and-fire" culture.
Angelo, a metal worker, told the BBC in Rome: "If there are demonstrations every day in Italy it's not because people are stupid, but because they're tired that the government always takes it out on the most vulnerable groups."
Thousands of union members took to the streets on Friday, from Milan to Palermo in the south.
The industrial action is the first-ever by two of Italy's largest union confederations against a centre-left government.
Centre-left administrations have traditionally had close relationships with the unions.
Correspondents say it is a sign of internal discord within Mr Renzi's own party, with some members of his Democratic Party joining the marches.
In recent years, a series of Italian governments have tried and failed to reform the country's employment laws.
GDP has fallen by 0.4% in the past year, and in the decade to 2010 only two countries had lower GDP growth than Italy - Haiti and Zimbabwe.
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Scrapping the mandatory coin toss in county cricket is "against the spirit of the game", says Leicestershire all-rounder Ben Raine.

The change is effective in both divisions and aims to encourage better pitches for four-day cricket.
"It is a bit of a rubbish rule," Raine told BBC Radio Leicester. "Hopefully it doesn't last too long. I'm not sure why the rule has been brought in.
"It's against the spirit of cricket and against the rules of the game."
The rule change means that Foxes skipper Mark Cosgrove will have the chance to decide if his side will bowl first in their opening County Championship match of the season against Glamorgan in Cardiff on 17 April.
England's limited-overs captain Eoin Morgan has said the move may benefit the game long-term, allowing younger players to develop different skills on better quality pitches.
Raine argues that the toss had little bearing on any of Leicestershire's County Championship results last season.
"I don't think there were too many pitches last year where the toss did really affect the outcomes," he added.
"The two games we did win, we did bowl first but there are plenty of times where we bowled first and lost."


Referee Bobby Madden will be the man in charge for the Old Firm derby at Celtic Park on Sunday.

Brendan Rodgers' Celtic side go into the game 33 points ahead of Rangers and have won all three derbies this season.
Moussa Dembele scored a hat-trick in Celtic's 5-1 victory in September and the French striker fired the winner in the  League Cup semi-final.
Celtic came from behind on Hogmanay at Ibrox to claim three points courtesy of Scott Sinclair's strike.


Aslef members have rejected a deal with Southern rail that would have ended a long-running industrial dispute.

It had been arguing with parent firm, Govia Thameslink Railway (GTR), over driver-only operated (DOO) trains.
Members of the drivers' union rejected the deal by 54.1% to 45.9%. The turnout was 72.7%.
Under the proposed agreement, Southern would have been able to run trains without a guard or onboard supervisor under certain circumstances.
Mick Whelan, general secretary of Aslef, said: "We understand and support the decision arrived at democratically by our members and will now work to deliver a resolution in line with their expectations."
Live updates: Southern strike and Sussex news
David Sidebottom, of independent watchdog Transport Focus, said: "The hope that services would improve on Southern has now been dashed for their passengers.
"They have had enough of the on-going industrial action. They have faced months of lost time, lost money and deep frustration at not being able to rely on the trains.
"It is vital that all parties in this dispute get back around the table to bring the services back to normal as soon as possible."
Nick Brown, GTR's chief operating officer, said: "Naturally we're saddened and hugely disappointed, as will be our passengers, with today's decision by drivers, particularly as the agreement carried the full support and recommendation of the Aslef leadership.
"We now need to understand the issues which led to this outcome and we'll be seeking to meet with the union as soon as possible to see how we can agree a way forward."
Why is there a Southern rail strike?
The dispute centres on Southern's decision to turn guards into on-board supervisors.
In this role they would no longer be responsible for opening and closing carriage doors - this duty would become the responsibility of the driver.
The dispute began in April when conductors - who are members of the RMT union - first took industrial action.
Aslef members first walked out over the plans in December, leading to the cancellation of all Southern services.
Aslef leaders announced they had reached a deal with GTR on 2 February following 11 days of talks.
The RMT said at the time it was "a shocking betrayal", and it has it now been rejected by Aslef members.
A DfT spokesman said: "It is disappointing that Aslef members have rejected the offer negotiated by their leaders at the TUC.
"The union leadership must now return to talks and work with their members on a deal they can back."
RMT leader Mick Cash said his union remained "focused" on the campaign to "protect the safety of the travelling public and put access and safe operation before profits".
He added: "[We] will now look to take that campaign into its next phase [by] working with our sister rail unions, the wider trade union movement and the passengers who use the railway.
"RMT repeats the call to Southern to give the guarantee of a second, safety critical member of staff on their trains and to sit down with the unions in new talks around the issue of safe train despatch."
The RMT held separate talks with Southern managers earlier this week, which broke down without an agreement after three hours.
On Wednesday, it announced further industrial action, saying conductors would walk out for 24 hours on 22 February.
There we have it. Aslef drivers voted by a small majority to reject the deal their leaders had struck with Southern.
That's not entirely surprising. Many saw the announcement of the deal as the end of the dispute, but that was wishful thinking.
Once we saw the details it was clear some drivers wouldn't be happy. That deal gave a list of "exceptional circumstances" under which a train might run without its scheduled Onboard Supervisor, or OBS.
Even assurances that those 'exceptional circumstances' didn't include RMT strike action proved insufficient. This wasn't just about solidarity with striking guards. Many drivers remain unconvinced that trains can be run safely without an OBS on board.
What happens next depends on the reaction of key players.
Southern moved quickly to offer fresh talks, and Aslef's Mick Whelan promised to "work to deliver a resolution" - with a relatively small 54.1% majority of drivers rejecting the deal, they'll hope it won't take too many tweaks to produce an acceptable deal.
But commuters will be painfully aware of the disruption further strikes would cause. This dispute has run for months and there's no longer much cause to feel like it's coming to an end.


A hospital whose A&E was criticised by care inspectors has been given final approval for a £484.7m rebuild.

The Royal Sussex County Hospital welcomed the news, which will allow some of the oldest buildings in the NHS to be replaced.
The safety and management of the Brighton hospital's A&E unit were rated "inadequate" by the Care Quality Commission (CQC) on Friday.
Chief nurse Sherree Fagge said the changes would be dramatic.
"The first new building will open in late 2019," she said.
"On that day I think few people will recognise it as the same hospital they have visited in the past."
The government approved the full business case for the redevelopment last week.
The full rebuilding programme will take nine years and be split into three stages but all clinical services will remain on site throughout.
Ms Fagge said all the buildings along the front of the hospital would be replaced, including some in use 25 years before Florence Nightingale began nursing in the 1840s.
Brighton's A&E unit was rated the second worst in England in July, with 19.9% of people waiting more than four hours.
Richard Beard, spokesman for Brighton and Sussex University Hospitals, said the redevelopment would ease pressure on A&E.
Conservative MP for Brighton and Kemptown, Simon Kirby, said receiving final approval was great news for the city.
"This redevelopment will enable the hospital to provide the very best facilities that the patients and staff deserve," he said.


Former GAA president and ex-Galway hurling star Joe McDonagh has died after a short illness at the age of 63.

The Galway man served as GAA president between 1997 and 2000 after winning an All-Ireland senior hurling medal and an All-Star during his playing days.
McDonagh helped Galway win the National League title in 1975 and earned his All-Star a year later.
After captaining Galway during their All-Ireland final defeat in 1979, he won a Liam McCarthy medal a year later.
McDonagh didn't start in the 1980 All-Ireland Final win over Limerick but he memorably led the rendition of the West's Awake on the steps of the Hogan Stand following Galway's emotional triumph.
His GAA presidency saw him leading the calls for the removal of the controversial Rule 21, which barred members of the British security forces from playing gaelic games.
The rule was eventually abolished a year after his presidential term concluded.
Current GAA president Aogan O Fearghail led the association in paying tribute to the Galway man.
"It was with great sadness that we learnt of Joe's passing last night and I know that sentiment is shared by so many throughout the wider GAA family," said the GAA president.
"Joe was held in extremely high regard and his company was enjoyed by so many over the course of his long involvement with the GAA in so many different capacities, not least as president from 1997 to 2000.
"He and his tenure left an indelible mark on Cumann Lúthchleas Gael and his passion for our games and activities was only matched by his passion for the Irish language."
McDonagh's passing comes two weeks after the death of his predecessor as GAA president Jack Boothman.


A decorated soldier who ran over a hitch-hiker after browsing the internet on her phone at the wheel has been jailed.

Ashley Taylor, 32, died in the crash near Watton, Norfolk, in January 2014.
Capt Alison Dray, 31, from Rochester, Kent, admitted causing death by dangerous driving and was jailed for nine months at Norwich Crown Court.
The Royal Logistics Corp member served in Afghanistan and defused 60 Taliban bombs.
She was in Norfolk for training when her hire car hit Mr Taylor on the A1075 near Watton on 8 January.
The court heard she had used her iPhone "extensively" in the moments leading up to the crash, and her car had mounted the kerb, killing Mr Taylor instantly.
Prosecutor Christopher Morgan told the court Dray had accessed a website with details of a hotel in Switzerland and had taken a screenshot on the phone.
Judge Anthony Bate said Dray, who received a Queen's commendation, was a "decorated soldier of previous exemplary character".
He had no option but to jail her, he added.
"You have served our country bravely and with distinction. It is plain that your remorse is sincere and profound - you have an intelligent and heartfelt understanding of the misery several seconds of inattention has brought on this family," he said.


Inter Milan have appointed former Ajax boss Frank de Boer as manager, after parting company with Roberto Mancini.

Mancini's position had been in doubt because of his reported misgivings over Inter's transfer business.
"I'm very happy to be here, and I hope to see you soon," De Boer, 46, said in a message on Inter Milan's Twitter.
Inter, who were bought by Chinese retail giant Suning in June, were beaten 6-1 by Tottenham in a pre-season match on Friday.
They announced Mancini's departure "by mutual agreement" on Monday. De Boer has signed a three-year contract.
The former Manchester City boss returned to Inter for a second spell as manager in 2014 but was unable to guide them back into the Champions League, finishing fourth last season.
High-level discussions took place with the club's new Chinese owners in New York last month and, after a third pre-season defeat, they have parted with Mancini just two weeks before the new Serie A season.
Former Netherlands international De Boer left Ajax earlier this summer and had been linked with the Southampton and Everton jobs.
He led the Amsterdam club to four successive Dutch titles but lost out to PSV Eindhoven on the final day of last season.


A fight between Floyd Mayweather and UFC lightweight champion Conor McGregor would be a "circus" and a "farce", says boxing great Oscar de la Hoya.

Ireland's McGregor, 28, claims he has signed his half of a deal to face 40-year-old Mayweather, who retired unbeaten in 2015 after 49 fights.
The American has said there is a "90% chance" he will take on McGregor if he returns to the ring.
"Success in one sport doesn't guarantee success in another," said De la Hoya.
The former six-weight world champion, who lost a close points decision to Mayweather 10 years ago, added: "It's not like McGregor would be fighting a good fighter, let alone a mediocre one - he would be fighting the best.
"It looks more and more likely that the circus known as Floyd Mayweather v Conor McGregor will be coming to town in the near future.
"One group will eventually be left to make sure this farce doesn't occur: We, the fans, who are the lifeblood of our sport.
"I fully understand the initial attraction from any fan of combat sports. McGregor is almost certainly the best pound-for-pound MMA fighter. Floyd is Floyd - the most dominant boxer of his time.
"Let's be clear, these are two different sports."
In an open letter posted on Facebook, De la Hoya, who retired in 2009, wrote: "My interest is in the health of boxing as a whole. Our sport might not ever recover.
"To use a bit of an extreme analogy, I happen to be a pretty good golfer. Would I be able to compete with Rory McIlroy, Jordan Speith or Sergio Garcia? Of course not. Nor would I think to try."
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Photographs of Andy Murray's win at the China Open dominate the front pages of a number of Scotland's front pages.

The win put the Dunblane-born Wimbledon champion "a step closer" to becoming world number one, according to The Herald.
He did not drop a set during the tournament in Beijing, where he secured his fifth singles title of 2016 - and the 40th of his career, The Scotsman reports.
Meanwhile The Daily Record brands the "super-rich" boss of Ineos petrochemical plant a "tea break tea leaf".
The paper claims 1,200 workers at the Grangemouth site could lose their morning tea break, under plans being drawn up by managers.
The Scottish edition of The Times leads with a warning from Carolyn Fairburn, leader of business group CBI.
She claims Theresa May's Brexit policy risks "closing the door" on an open economy.
Police Scotland's warning over the "killer clown" craze features on the front page of The National.
The girlfriend of former Celtic player Anthony Stokes has called in the police after having private photographs stolen, according to the Scottish Sun.
The Scottish Daily Mail accuses Royal Mail of "making millions from conmen who defraud the elderly on a massive scale". Royal Mail said it took the paper's finding seriously and it "does not knowingly distribute mail from fraudsters".
A plot by pro-EU MPs to block Brexit has "sparked fury", according to the Scottish Daily Express.
And the Press and Journal's Highlands and islands edition reports on a house fire at a family home near Carrbridge.


Scotland's most senior policeman has apologised to the families of a couple who were left in a car wreck for three days after the crash was reported.

John Yuill died and Lamara Bell was critically injured in the crash on the M9 on Sunday, but the pair were only discovered by officers on Wednesday.
Sir Stephen House said information from a call received on Sunday had not been entered into police systems.
The chief constable admitted that the force had "failed both families".
There have been calls for an independent investigation of the case.
The Police Investigations and Review Commissioner (Pirc) is reviewing the handling of the incident, focusing on the call on Sunday.
Mr Yuill, 28, was killed and Ms Bell, 25, is in a medically induced coma at Queen Elizabeth University Hospital in Glasgow, having suffered kidney damage from dehydration from lying in the wreckage for so long. Her condition was described by doctors as "very serious".
Her family said they were angry and disgusted by the way Police Scotland had handled the case.
The chief constable said a member of the public had called the 101 non-emergency number at about 11:30 on Sunday after seeing the car down the embankment near the Bannockburn slip road.
The call had been taken by an "experienced officer", who remains on duty. However, "for reasons yet to be established" this was never entered into systems or sent out to operational teams in the area.
Sir Stephen said: "Firstly I want to apologise to the families of John Yuill and Lamara Bell and to the people of Scotland for this individual failure in our service. Everyone in Police Scotland feels this most profoundly.
"Our duty is to keep people safe and we've not done that effectively on this occasion, with tragic consequences, and I want to apologise to everyone for that.
"I completely understand the level of concern being raised about the circumstances surrounding the handling of the incident of the crash near the M9 slip road at Bannockburn and, in particular, Police Scotland's response to information received.
"That we failed both families involved is without doubt."
Sir Stephen said the incident had been "rightly" referred to Pirc and the Crown Office, and that police would remain independent of the investigation.
Justice secretary Michael Matheson, also the local MSP for Falkirk West, said he was keen for the investigations to be taken forward in a "quick and very swift way".
He said he had been assured by Police Scotland that all relevant information would be passed on to Pirc.
Scottish Liberal Democrat leader Willie Rennie has written to Mr Matheson asking for a full independent inquiry, saying the closure of a number of local control rooms under the move to the single police force could have had a "detrimental impact".
He said: "Public anger and sadness over the events which unfolded this week has been substantial, and underlines the importance of getting answers over how this situation unfolded.
"There is a growing body of evidence to suggest that the decision to close a number of police control rooms has had a detrimental impact on the quality of service that hard-working call centre staff are able to provide.
"Our response to this incident must allow for a close examination of the current situation in Police Scotland's remaining call centres. If these cuts have made life more difficult for officers and the communities they serve, then we need to know about it."


A slaughterhouse is under investigation after undercover footage allegedly showed "sheep having their throats repeatedly cut".

Malik Food Group's (MFG) in Burnley, Lancashire, has had Welfare Enforcement Notices issued by the government after a film taken over two days emerged.
The Food Standards Agency (FSA) reviewed 70 hours of footage taken between 2-21 March by Animal Aid.
The FSA said animal welfare was a "high priority". MFG is yet to comment.
Animal Aid said it had "uncovered barbaric and deliberate cruelty being inflicted on animals".
It claimed that sheep were filmed at Dunnockshaw farm "having their throats repeatedly cut, as many as seven times in one case, in contravention of the law".
The charity alleges it was because the slaughterman failed to maintain a surgically sharp knife.
Luke Steele from the charity said the footage showed "horrific scenes... unlike any we have ever seen before".
The FSA said it takes all alleged breaches "extremely seriously".
It said it has taken immediate enforcement action against both the business operator and individual staff and revoked slaughterman certificates of competence.
"Our investigations into this establishment continue but to say more at this stage could be prejudicial to any future potential criminal proceedings."
Malik Food Group said on its website it is the UK's leading processor of halal mutton, lamb and beef.
It said it ensures sheep and lambs are slaughtered by Muslim slaughtermen "adhering to the highest principles of halal animal welfare".


Drivers were stuck in queues of up to 23-miles after two vehicles were involved in a crash on the M4 in Monmouthshire on Saturday morning.

Gwent Police said one vehicle towing another had jack-knifed into the central reservation on the eastbound carriageway between junction 23 and junction 22 just after 10:30 BST.
Two lanes heading towards the Second Severn Crossing were shut but have now reopened.
Queues have now eased.


A Welsh music award ceremony founded by BBC Radio 1 DJ Huw Stephens has been scaled back at the last minute because of noise complaints at the host venue.

The Welsh Music Prize, won last year by Welsh-language singer Gwenno and her album Y Dydd Olaf, was to include performances from nominated artists.
Cate Le Bon and Climbing Trees are two of the 12 acts nominated for the award.
Organisers will now have an invite-only awards ceremony without live music at The Depot in Cardiff on 24 November.
"We are taking the step to reduce our noise output by reverting to an invite-only event without live performances," said a Welsh Music Prize statement.
"Due to a small number of noise complaints in recent months at The Depot, we do not want to proceed with a full programme of amplified live music as originally intended.
"We have big plans for next year and we are sorry for any disappointment this may cause."
The Welsh Music Prize, whose past nominees include Manic Street Preachers, Catfish and The Bottlemen and Super Furry Animals frontman Gruff Rhys, has promised refunds for purchased tickets.
The Depot owner Nick Saunders confirmed the awards have been scaled back as the venue "works with Cardiff council and local residents" to minimise any potential disruption.
"We will do everything we can to ensure the local residents enjoy the Depot as much as we do," he added.


Mining shares pulled the FTSE 100 lower, while Royal Mail shares dropped after the government sold its remaining stake in the company.

The FTSE 100 closed down 28.9 points, or 0.5%, at 6,342.28.
Some weak trade figures from China put pressure on mining shares, with Glencore falling 2.6% and Anglo American down 1.8%.
Royal Mail shares fell 4.2% to 452.5p, after the government sold its final stake in the company.
The government said it had raised £591.1m from selling its final stake in Royal Mail at 455p a share.
Shares in brewer SABMiller jumped 9% to £39.48 after it agreed terms for a takeover by AB InBev.
SABMiller said it had agreed "in principle" an increased offer from its rival of £44 a share, bringing closer the prospect of a tie-up between the world's two largest brewing companies.
In the FTSE 250, shares in Bellway Homes rose 3.6% after the housebuilder reported a 44% increase in full-year pre-tax profits to £354.2m.
News that UK inflation turned negative again in September pushed the value of the pound down, as the prospect of an early rise in interest rates diminished.
CPI inflation fell to -0.1% last month from 0% in August. The CPI rate has been at or close to zero for most of this year, and was last in negative territory in April.
The pound was trading down more than a cent against the dollar at $1.5237, and was also down more than a cent against the euro at €1.3387.


Funding cuts could see the closure of exhibitions and job losses, the director general of National Museum Wales (NMW) has said.

David Anderson spoke to BBC Wales after making an offer to staff involved in a long-running pay dispute over ending "premium payments" to weekend staff.
Strikes by the Public and Commercial Services (PCS) union have hit museums.
One union official said the proposals "attacked" the terms and conditions of workers who gave up their own weekends.
But Mr Anderson said public sector spending cuts had forced a review of NMW's staff costs and he urged workers to accept the museum's "best offer".
"There's only a certain number of options we have and if we don't make the savings on the staff costs then we have to do it in terms of the galleries and the buildings and the sites, or not having any new exhibitions, or closing down our education services," he added.
"Those are the things we spend the money on, so those are our choices. We wouldn't be doing our job if we didn't preserve our services as well as preserving staff."
NMW runs seven sites; National Museum Cardiff, St Fagans National History Museum, National Waterfront Museum in Swansea, Big Pit in Blaenavon, Torfaen, National Roman Legion Museum in Newport, the National Wool Museum in Llandysul, Carmarthenshire, and the Welsh Slate Museum in Llanberis, Gwynedd.
PCS is conducting an indicative ballot to assess whether its members will accept the latest proposal.
The result will be known by 2 October and it will then decide whether to hold a full vote on the issue.
Neil Harrison, the PCS union's branch chairman at National Museum Wales, said he did not believe "affordability" was a factor in the proposed changes to staff payments.
"What lies at the heart of this is an attempt by management to remove weekend payments," he said.
"It's an attack on the terms and conditions of those people who have to give up their weekends so that other people can come with their families to enjoy the national museums."
Dozens of strikes have forced the museum's sites across Wales to close at various times during the course of the dispute since 2014.
Mr Anderson said he had returned Â£30,000 of bonuses he had been eligible for in recent years and staff on higher pay grades had been subject to a pay freeze.
The museum said its latest offer to workers involved in the dispute includes a 6% increase in basic pay, plus a further two years' worth of premium payments equivalent to an average payout of Â£3,600.
It will also guarantee the lowest paid staff will not "lose out" through the process.
A spokesman said: "We feel that in the present economic circumstances where, like everybody else in the public sector in the UK, we've had a loss in real terms of about 25% of our budget in the last few years.
"This is a very fair offer that we're making in the middle of an austerity storm."


A community group in south London has raised concerns about how increasing property prices are changing the area.

24 September 2013 Last updated at 15:09 BST
Peckham Vision, which represents businesses, churches and community groups, said local people are being forced out due to rising costs.
Co-ordinator Eileen Conn, who's lived in the area for 40 years, said the pace of change could have a negative effect: "If there is suddenly a rush of money from elsewhere that's got nothing to do with local developments.. that's not going to be good for Peckham," she said.
Savills UK has published a map showing the gentrification of London between 2001 and 2011 and it profiles areas which have changed due to a number of factors, including an ever-expanding population.
BBC London's Warren Nettleford spoke to Professor Chris Hamnett, from Kings College London, Luke Wooster, from Wooster & Stock Estate Agents, and Eileen Conn, from Peckham Vision.


A police investigation has been launched after a hidden camera was found in a changing room at an Edinburgh sports centre.

The camera was revealed when a fourth year pupil from James Gillespie High School threw his shoe and dislodged a ceiling panel.
The changing rooms are used by male and females at different times.
The incident happened at about 15:30 on Wednesday.
It is understood the boys were at the sports centre for a PE class.
Meadowbank Sports Centre is run by city council arms-length company, Edinburgh Leisure.
An Edinburgh Leisure spokeswoman said: "Police Scotland is investigating an incident which occurred on Wednesday and all necessary precautions are being taken to ensure an isolated incident.
"I am unable to discuss any of the specifics at this time while a Police Scotland investigation is underway."
A Police Scotland spokesman said: "Police in Edinburgh were made aware of a suspicious camera within the Meadowbank Sports Centre changing room.
"Inquiries are ongoing."


London 2012 gold medallist Katherine Grainger and former double scull partner Vicky Thornley have failed to win places in Great Britain's women's eight for the Rio Olympics.

The duo dissolved their double scull partnership in May to focus on earning spots in the larger boat.
Grainger, 40, and Wales' Thornley, 28, could miss the Games unless selectors decide to return them to the double.
The squad is to be announced on Thursday.
"Whilst we had not lost confidence in Vicky Thornley and Katherine Grainger and felt they were still a potential medal boat, they asked to be considered instead for selection to the women's eight, which is already a proven medal winning combination," said British Rowing in a statement.
"We opened up a process and gave them the opportunity. They have not been successful and we are now looking at next steps in a selection process which is on-going."
Grainger - who is Britain's most decorated female Olympian alongside swimmer Rebecca Adlington - won the double scull with Anna Watkins at London 2012 after collecting silver medals at the three previous Games.
However her hopes of defending the title appeared to be at an end after she and Thornley failed to make the podium at the European Championships, prompting British Rowing to stop work on their partnership.
British rowing legend Sir Steve Redgrave said last month that despite their struggles he still expected Grainger and 28-year-old Welshwoman Thornley to appear at Rio.
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West Ham failed to reach the Europa League group stage as Astra Giurgiu knocked them out in the qualifying round for the second year in a row.

After a 1-1 away draw last week, West Ham went behind when Filipe Teixeira precisely finished a swift counter-attack by the Romanian champions.
After the break West Ham's Jonathan Calleri and Winston Reid missed good chances and Ashley Fletcher went close.
But West Ham could not avoid a first competitive loss at the London Stadium.
"The disappointment is massive," said Hammers manager Slaven Bilic.
"We didn't play good in the first half or with desire as a team. We were second best."
Hammers boss Bilic had stressed the importance of "getting the job done" and reaching the Europa League group stage after starting their qualifying campaign back in late July.
But they could not break down a stubborn Astra side, who have only won once in five league games this season but went through on Thursday by converting one of just two shots they had on target.
In contrast, the Hammers had 17 unsuccessful attempts at goal - again highlighting Bilic's need for attacking reinforcements.
The Croat says he is interested in signing Manchester City forward Wilfried Bony, but will not "beg" anyone to join the club.
Bilic freshened up his side again, making eight changes from the starting XI which beat Premier League rivals Bournemouth at the weekend.
However, he had few attacking options to choose from, with Dimitri Payet, Andy Carroll, Manuel Lanzini and Andre Ayew all out injured.
As a result his team did not provide enough creativity and attacking threat against a side many expected them to beat.
Argentine striker Calleri missed two golden chances, one either side of the break, with only Fletcher - a young forward signed from Manchester United this summer - providing real spark when he came on shortly after the hour mark.
The Hammers' exit from Europe's secondary club competition leaves Manchester United and Southampton as the only English sides in Friday's draw.
Both teams moved directly into the group stage after finishing fifth and sixth in the Premier League last season, above seventh-placed West Ham.
Italian giants Inter Milan, Dutch runners-up Ajax and Spanish side Athletic Bilbao are all potential opponents for the English pair, along with Dundalk, who fell short of becoming the first Irish team to reach the Champions League group stage.
The draw takes place at 12:00 BST on Friday.
West Ham are left to focus solely on their domestic season. Next up is a Premier League trip to Manchester City, who have won both of their opening matches, on Sunday (16:00 BST).


President Donald Trump has defended Attorney General Jeff Sessions as "an honest man" amid calls for him to quit.

The Democrats say Mr Sessions "lied on oath" at his confirmation hearing about contacts with the Russian ambassador.
Mr Trump said Mr Sessions "could have stated his response more accurately but it was clearly not intentional" and accused Democrats of a "witch hunt".
However, Mr Sessions has removed himself from an FBI probe into alleged Russian meddling in the US election.
The Democrats have maintained their attacks on Mr Sessions, saying his explanation regarding his contacts with the Russian ambassador in 2016 were "simply not credible".
Sergei Kislyak : Career diplomat or recruiter of spies?
Mr Trump said the Democrats had "lost the election and now they have lost their grip on reality".
His campaign was dogged by allegations that some of his team had met with Russian officials and that Moscow had interfered in the election on his behalf. The president has branded the allegations "fake news".
It stems from his comments at his confirmation hearing in January.
He was asked: "If there is any evidence that anyone affiliated with the Trump campaign communicated with the Russian government, in the course of this campaign, what will you do?"
Mr Sessions responded: "I'm not aware of any of those activities. I have been called a surrogate at a time or two in that campaign and I did not have communications with the Russians. And I'm unable to comment on it."
However, it then emerged Mr Sessions and Russian ambassador Sergei Kislyak held a private conversation in Mr Sessions' office in September and spoke at a meeting with several other envoys on the sidelines of the Republican National Convention in July.
Mr Sessions was at the time a member of the Senate Armed Services Committee. But he was already a prominent member of Donald Trump's campaign team.
The former Alabama senator also had meetings with more than 25 foreign ambassadors in the course of the year.
He insists he did not lie at the confirmation hearing, saying his comments were "honest and correct as I understood it at the time".
He said he had spoken with the Russian ambassador as a US senator and not as Mr Trump's "surrogate".
He said: "I never had meetings with Russian operatives or Russian intermediaries about the Trump campaign."
Mr Sessions admitted that in his confirmation comments he "should have slowed down and said, 'but I did meet one Russian official a couple of times'".
He said that during his meeting with Mr Kislyak they talked about terrorism and then "somehow the subject of Ukraine came up".
But he added: "I don't think what was said about that meeting I had with the Russian ambassador was legitimate. I think it was hyped beyond reason, and I think it was unfair."
However, he has taken himself off an FBI investigation into the alleged Russian interference in the election, saying it could be "perceived that I wouldn't be objective".
The Democrats are not easing up.
Ms Pelosi repeated her call for Mr Sessions to quit. She said his "his narrow recusal and sorry attempt to explain away his perjury" were totally inadequate.
Adam Schiff, the top Democrat on the House intelligence committee, said Mr Sessions "clearly misled" the Senate and his explanation was "simply not credible".
Although some top Republicans in the House and Senate agreed Mr Sessions should recuse himself from the investigation, senior figures rallied behind him, resisting demands for the appointment of an independent prosecutor.
For Mr Sessions to be charged with perjury, prosecutors would have to show that he not only made false statements, but knowingly and wilfully misled members of the committee about an indisputable fact.
The Russian response was to echo Mr Trump's witch hunt accusation.
Foreign Minister Sergei Lavrov said Mr Kislyak had simply met "representatives of the executive branch and parliamentarians, public figures, non-governmental organisations", a practice he said that "has never been questioned by anyone".
He continued: "All this very much resembles a witch hunt, or the period of McCarthyism, which we thought had long passed in the United States as a civilised country."
In the 1950s, Senator Joseph McCarthy oversaw an investigation into alleged communist activities in the US.
Well, Michael Flynn has already been fired from the post of national security adviser after he misled the White House about his conversations with Mr Kislyak, allegedly regarding US sanctions.
It has emerged now that Mr Trump's son-in-law Jared Kushner was with Mr Flynn when they met Mr Kislyak in December - after the 8 November election.
A White House official speaking on condition of anonymity confirmed this on Thursday.
At the Republican National Convention in Cleveland in July, Mr Kislyak also met Carter Page, who briefly advised the Trump campaign, according to a source quoted by Associated Press.


Antrim hurlers' promotion hopes suffered a blow as they were beaten 2-11 to 0-10 by Westmeath in the top-of-the-table game in Division Two A.

Robbie Greville's immediate goal helped Westmeath led 1-5 to 0-2 before Antrim cut the margin to 1-6 to 0-5 by the break at Mullingar.
Antrim were three behind with seven minutes left but Derek McNicholas' goal sealed Westmeath's win.
McNicholas finished with an impressive tally of 1-6 for Michael Ryan's side.
Despite the defeat, Antrim will be fancied to regroup to earn a Division 2A final meeting against Westmeath.
Westmeath lead the table on six points while Carlow's 2-25 to 0-9 win over Derry moves them alongside the Saffrons on four points.
London are in fourth spot on three points after the draw with Kildare on Saturday while Derry are propping up the table after their third straight defeat.
Down were knocked off the top of Division Two B after they suffered a 0-20 to 0-16 defeat by new leaders Mayo at Pairc Esler.
Armagh joined Down on four points as they edged a 2-17 to 2-15 win over Wicklow.
WEEKEND ALLIANZ HURLING LEAGUE RESULTS
Sunday
Division One A
Kilkenny 0-21 1-14 Galway
Tipperary 1-17 1-18 Waterford
Division One B
Kerry 0-08 2-25 Wexford
Offaly 0-14 1-19 Limerick
Division Two A
Carlow 2-25 0-09 Derry
Westmeath 2-11 0-10 Antrim
Division Two B
Wicklow 2-15 2-17 Armagh
Down 0-16 0-20 Mayo
Meath 2-35 0-09 Donegal
Division Three A
Monaghan 2-19 1-12 Louth
Roscommon 1-14 0-16 Fingal
Division Three B
Sligo 1-14 1-09 Fermanagh
Longford 3-12 0-13 Leitrim
Saturday
Division One A
Dublin 4-21 2-17 Cork
Division One B
Laois 0-16 1-21 Clare
Division Two A
London 1-11 0-14 Kildare
Division Three A
Tyrone 0-17 1-12 Warwickshire


Marinas, fish farms and navigation buoys could be regularly monitored to help provide early warnings of the spread of invasive marine species.

Scientists examined the best ways of checking for non-native wildlife for a report commissioned by Scottish Natural Heritage (SNH).
An estimated 58 invasive species cause at least Â£40m worth of damage a year to UK marine industries, the report said.
The harmful wildlife include algae and Pacific oysters.
The scientists tested several techniques for monitoring non-native species at sites on Scotland's west coast, including Loch Fyne and Firth of Lorn, and the Firth of Forth on the east coast.
Objects checked for alien life included the submerged bottoms of Northern Lighthouse Board navigation buoys.
The report has recommended that a network of sites could be surveyed for the presence of invasive plant and animal life.