Prisoner on the run 'should not be approached'

Police say Marcus Yeldham is known to frequent Wales

Police are appealing for help tracing a man who has been on the run from prison for a week.

Marcus Aaron Yeldham absconded from Spring Hill Prison near Aylesbury, Buckinghamshire, at about 08:15 GMT on 23 December.

Thames Valley Police has urged people not to approach Yeldham, 45, who is known to frequent Wales.

He has brown hair, and tattoos on both arms.

A number of inmates have escaped from the men's open prison in Grendon Underwood over the past year.

Det Sgt Angelina Messenger said: "If you see Yeldham, do not approach him and call 999 instead.

"If you know where he is or may have seen him, please call 101 or make a report on our website."