An appeal calling for Paralympic champion Oscar Pistorius to be convicted of the murder of his girlfriend Reeva Steenkamp has been filed by prosecutors in South Africa.
The action comes just days ahead of Pistorius'release from prison on Friday, less than a year after being convicted on the lesser charge of culpable homicide.
He will serve the rest of his five-year sentence under 'correctional supervision', which is a form of house arrest.
The 28-year-old athlete, known as the Blade Runner for the prosthetic legs he uses to run, killed 29-year-old model Steenkamp when he fired four gunshots through a locked bathroom door at his home in Pretoria on Valentine's Day 2013.
He claimed he feared she was an intruder, but in the appeal filed today prosecutors repeat allegations that he deliberately killed her after an argument.
His defence team have until September 17 to file its response, and the appeal is expected to be heard in November.
If they are successful, he could face at least 15 years behind bars.
Oscar Pistorius is set for release from jail in August after serving just 10 months behind bars for killing his girlfriend Reeva Steenkamp.
The Paralympic medallist is expected to serve the rest of his five-year sentence under 'correctional supervision', which is a form of house arrest in South Africa.
Pistorius was found guilty of culpable homicide after shooting his model girlfriend through a bathroom door at his home in 2013. He has always maintained it was an accident.
The Steenkamp family said in a statement they did not seek to avenge Reeva's death as that would not bring her back.
"However, a person found guilty of a crime must be held accountable for their actions," they added.
In November, prosecutors are set to appeal against Pistorius' sentence. If successful, it could see him jailed for 15 years.
ITV News Correspondent Dan Rivers reports:
South African prison officials have recommended that Oscar Pistorius be released from jail on 21st August and be placed under house arrest.
A prison committee recommended that Pistorius be released from the prison in Pretoria after serving one sixth of his five-year sentence for the unlawful killing of his girlfriend Reeva Steenkamp in 2013.
The Associated Press report that a full parole board decision is pending and that the full conditions of Pistorius' house arrest won't be made public by the authorities.
South African Oscar Pistorius is expected to be released on parole in August, Reuters has reported, citing a family member.
Double-amputee Pistorius, a Paralympic champion, is currently serving a five-year prison sentence after being convicted of culpable homicide of his girlfriend Reeva Steenkamp in 2013.
"Oscar will be released on parole by the end of August," a Pistorious family member who did not want to be named told the news agency. Pistorius started his five year sentence in October last year.
Lawyers for Oscar Pistorius have failed in their attempt to stop prosecutors appealing over his conviction for the negligent killing of his girlfriend Reeva Steenkamp.
Cape Town Judge Thokozile Masipa dismissed an application to challenge the appeal by prosecutors, who want Pistorius convicted of the more serious charge of murder for shooting Miss Steenkamp on Valentine's Day 2013.
In December, prosecutors were granted permission to take the case to South Africa's Supreme Court of Appeal.
Double-amputee Pistorius, a Paralympic champion, is serving a five-year prison sentence after being convicted of culpable homicide.
Footage of the former South African athlete, obtained by the Daily Sun newspaper, seems to show him playing football with another inmate.Read the full story ›
A court in South Africa has granted prosecutors leave to appeal Olympic and Paralympic athlete Oscar Pistorius' culpable homicide conviction, Reuters reports.
Prosecutors will now seek a murder conviction over the death of Pistorius' girlfriend Reeva Steenkamp.
June Steenkamp has described the stormy relationship her daughter Reeva had with Oscar Pistorius.
In an exclusive interview on This Morning, June said her daughter had her bags packed to leave the Olympic champion the night he killed her.
She said their three month relationship was full of fights - which she found odd so soon in their relationship. She said:
I think they were fighting because he wanted to dominate her, and she wasn’t the kind of girl you could dominate. She had her own stand in life.
Asked by Phillip Schofield whether she thought Reeva was planning to leave, she said her bags were packed to leave on that fateful Valentine's night.
June said her presence in court disconcerted Oscar, and she thought this was important.
She said she will never get over the death of her daughter, and that she may meet Oscar in the future so that he can apologise for the enormous pain he has caused her family through his actions. She said she hopes her book will remind people of the life of her daughter, and not just her death.
Prosecutors say they have filed appeal papers against the verdict and sentence in the Oscar Pistorius case.
The prosecution is appealing against Judge Thokozile Masipa's decision to acquit Pistorius of murder for shooting girlfriend Reeva Steenkamp. Judge Masipa found the Olympic runner guilty of a lesser charge of culpable homicide, or manslaughter.
South Africa's National Prosecuting Authority said it had filed initial appeal papers, exactly two weeks after the double-amputee athlete was sentenced to five years in prison for killing Ms Steenkamp.
Prosecutors must first apply to Judge Masipa for permission to appeal against the verdict and sentence.
They say Pistorius should have been found guilty of murder. He would face a minimum of 15 years in prison if convicted of murder on appeal.