Pretoria police have confirmed that a 30-year-old woman has died after being shot on Thursday morning at the home of Paralympian Oscar Pistorius.

A 26-year-old man has been arrested, a police spokeswoman confirmed to Press Association Sport, with local reports claiming that the person is Pistorius. The spokeswoman declined to confirm the identity of the man in custody.

"I can confirm that a woman has been fatally wounded in a shooting at Oscar Pistorius' house," the spokeswoman said. "A 26-year-old man has been taken into custody."

The spokeswoman added: "The incident happened at 3am. We received a call and attended the scene. The call did not come from the man in custody but from another person.

"Currently there is an inquiry into what happened."

The incident occurred at Pistorius' home in the Silver Lakes area of Pretoria.

The dead woman is widely reported in South Africa's media to be Pistorius' girlfriend.