Oscar Pistorius has been treated at a private hospital in South Africa for injuries to his wrists, after allegedly trying to self-harm in prison.
A spokesman for the correctional department could not disclose details on the injuries the former athlete sustained, but said he denied it was a suicide attempt.
Pistorius claims his injuries were caused by falling out of bed.
He was returned to his prison cell in Pretoria later on Saturday and an investigation was underway.
Last month the former Olympian was sentenced for six years for murdering his girlfriend Reeva Steenkamp on Valentine's Day in 2013.
Prosecutors said they would appeal, saying his sentence was too lenient.