Police are appealing for information to locate a man who had been released in error from Wandsworth Prison.
They were informed of the mistake, regarding 34-year-old Ryan Byrne, last Friday.
He is described as a white man, 5ft 11ins tall and of medium build. Byrne has blue eyes and has a goatee beard.
Byrne was sentenced to a total nine years earlier this year for burglary, theft and robbery.
Enquires are underway to trace his whereabouts.
Anyone who has seen Ryan Byrne or has any information on his whereabouts is asked to contact police on 101.