People are being warned not to approach a man who absconded from a mental health unit.
Anthony Knowles, 48, was on escorted leave from the facility in Homerton, east London, when he went missing yesterday, the Metropolitan Police said.
Knowles, who walks with a limp, is 5ft 8in, heavily built and has tattoos on both arms and a scar across his left eye.
He was wearing a light grey tracksuit and a black cap when he was last seen.
People are advised not to approach Knowles but to call 999 if they see him.
It comes after a convicted killer and rapist absconded from the John Howard Centre in Hackney, east London, last month.
Officers launched a manhunt after Samuel Lee, 44, failed to return to the mental health centre from an authorised trip on May 29.
Lee, who is serving a life sentence for snatching and raping a 31-year-old cerebral palsy sufferer in north London in 2000, a decade after he was jailed for manslaughter for stabbing a man to death in 1989, was arrested three days later after being found in Eastbourne, Sussex.