The 28-year-old double amputee was sentenced in October 2014 to five years in prison for killing his girlfriend, model and law graduate Reeva Steenkamp on Valentine's Day 2013, after a trial that attracted global headlines.
Oscar Pistorius was released from prison in South Africa Monday and placed under house arrest, Correctional Services spokesman Manelisi Wolela said.
The former Olympic athlete had been in prison since October last year, when a judge sentenced him to five years for culpable homicide in the killing of his girlfriend, Reeva Steenkamp.
Pistorius shot the model and law school graduate on Valentine's Day 2013. He has said he mistook her for an intruder.
Last week a South African parole board said it had approved his placement under house arrest and correctional supervision for four years.