Paralympic gold medallist Oscar Pistorius has shot and killed his girlfriend, South African media are reporting.
Afrikaans-language newspaper Beeld is reporting he mistook the woman, his girlfriend of a year, for a burglar to his Pretoria home.
Johannesburg's Talk Radio 702 said Pistorius was understood to have shot his girlfriend in the head and arm.
Beeld said Pistorius had been arrested, and was expected to appear in the Pretoria Magistrate's Court on Thursday.
A police spokeswoman told Reuters that a woman had been found dead at the house but declined to give any more details.
Pistorius, who races wearing carbon fibre prosthetic blades after he was born without a fibula in both legs, was the first double amputee to run in the Olympics and reached the 400 metres semi-finals in London 2012.
Nicknamed 'the Blade Runner', the 26-year-old has been a trailblazer for disabled athletes, and was hailed as an inspiration by many of the able-bodied athletes during the London Games.
