A verdict in the Oscar Pistorius murder case will be delivered on September 11.

The televised case, which has been ongoing for five months, is set to come to an end next month when the judge announces her decision on whether the South African Paralympic sprinter deliberately shot dead his girlfriend Reeva Steenkamp, 29, in his home last year.

The 27-year-old athlete claims he accidentally fired the gun at his model beau through the closed door of a toilet cubicle after thinking she was an intruder in his home.

However, the prosecution believes Oscar killed her in cold blood following a blazing row.

Chief prosecutor Gerrie Nel has urged judge Thokozile Masipa to dismiss Oscar's account of events as they were ''devoid of any truth'' and to convict him of pre-meditated murder.

The sprinter's defence lawyer, Barry Roux, believes Oscar's disability played a role in the killing as it had made him vulnerable and anxious about crime.

Oscar pleaded not guilty to murder and three separate firearm charges.

However, if he is found guilty of murder he could face life in jail or 15 years in prison if the court finds him guilty of the lesser charge of culpable homicide.