
Johannesburg's Talk Radio 702 said Pistorius had shot his girlfriend in the head and arm, although the circumstances surrounding the incident remain mysterious.
He may have mistaken her for a burglar, the radio report said.
A police spokeswoman told Reuters that a woman had been
found dead at the house but declined to give any more details.
Pistorius races wearing carbon fibre prosthetic blades
as he was born without a fibula in both legs.
He was the first double amputee to run in the Olympics and reached the 400 semi-finals in London 2012.
South Africa has some of the world's highest rates of
violent crime and some home-owners carry weapons to defend
themselves against intruders.
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