A convicted murderer has absconded from prison.
Lester Jackson, 43, was convicted following the crime in London in 1991 and jailed.
On Monday he left HMP Kirkham in Lancashire to attend a work placement in St Annes but did not turn up and has not been seen since.
Detectives want help tracing him.
Detective Chief Inspector Brian Quinn said he did not believe the public were at risk but "it is important that he is returned to custody as soon as possible".
Jackson is described as white, 6ft 1in, of slim build, with short brown hair and green eyes.
Quinn said that he could be in the St Annes or Blackpool areas or possibly in Cumbria, Hertfordshire or London.
He said: "I would appeal to anyone who knows where Lester Jackson is to come forward and contact the police immediately.
"I would reassure the public that the relevant authorities carry out numerous checks on people prior to them being placed and that we have a team of officers searching for Jackson.
"At this stage, I do not believe that members of the public are at risk.
"If anyone has any information then I would appeal to them to get in touch - even the smallest details could prove crucial as we try to locate him."
Any sightings should be reported to Lancashire Police on 101 or Crimestoppers on 0800 555 111.