Olympic athlete Oscar Pistorius is now a convicted murderer after a South African appeals court overturned an earlier manslaughter verdict.

Pistorius killed his girlfriend Reeva Steenkamp on Valentine’s Day in 2013 after shooting her through a door at his home in Pretoria.

He is currently under house arrest after spending one year of his original five-year sentence in jail.

But prosecutors appealed against the conviction, arguing that the athlete should have been found guilty of murder.

Their appeal was successful and Pistorius will now have to return to court to be re-sentenced for murder.

The minimum sentence for murder in South Africa is 15 years, but judges can apply some discretion.