Oscar Pistorius will be released on bail on a charge of murdering his girlfriend Reeva Steenkamp, Pretoria magistrate Desmond Nair has said.

"Blade Runner" Pistorius, 26, is accused of murdering 29-year-old model Steenkamp at his home last week but claims he shot her through a bathroom door thinking she was an intruder.

Magistrate Desmond Nair announced his decision after lengthy deliberations at Pretoria Magistrates' Court.