New pictures show Pistorius's cramped prison cell as he awaits murder charge decision

Melissa Hills and agencies

As Oscar Pistorius awaits to find out if his manslaughter conviction will be changed to murder, new pictures of the cramped jail cell where he spent a year after the death of Reeva Steenkamp have been revealed.

Pistorius will find out on Thursday if he will return to jail when the Supreme Court of Appeal if it will scale up the track star's conviction from manslaughter to murder.

The Paralympic sprinter, 29, was found guilty last year of the lesser crime of culpable homicide - the equivalent to manslaughter - for killing Steenkamp in the early hours of Valentine's Day, 2013.

Reeva Steenkamp and Oscar Pistorius. Photo: Yahoo
The single bed in the prison cell that Pistorius shared in the South African jail. Photo: Supplied

Pistorius' cell was furnished with a single mattress on a metal frame. They also installed bars to help the double amputee during his time inside.

The prison where Pistorius was held is known for its gang violence and overcrowding.

The adapted bathroom in the prison cell. Photo: Supplied
Oscar Pistorius pictured celebrating his 29th birthday with his family, including his uncle's grandchildren. This picture was shared by his aunt Lois as they celebrated on November 22. Photo: Twitter

The Paralympic gold medallist was released on parole in October after serving a fifth of his five-year prison term for the "culpable homicide" of Steenkamp, whom he killed by firing four shots through a locked toilet door.

Prosecutors said Pistorius should be convicted of murder and sent back to jail because he knew the person behind the door could be killed when he fired.

Inside the jail cell that Pistorius shared in South Africa. Photo: Supplied

A murder conviction would result in a minimum sentence of 15 years in prison.

"The judgment will be delivered on December 3 at the Supreme Court of Appeal," the court said in a statement on Tuesday.

Pistorius, whose lower legs were amputated when he was a baby, denied during his six-month trial that he deliberately killed Steenkamp, saying he mistook her for an intruder at his home.

High Court Judge Thokozile Masipa ruled last year that the state had failed to prove Pistorius had shown "intent" or "dolus eventualis", a legal concept that centres on a person being held responsible for the foreseeable consequences of their actions.

The state argued at the appeal that Masipa misinterpreted some parts of the law, including "dolus eventualis".

If the court of appeal overturns Masipa's verdict, she will be responsible for passing a new sentence on Pistorius, according to legal experts.