Thames Valley Police is appealing for help in tracing a man who absconded from Spring Hill Prison, Aylesbury.
Ade Apata Omisore, aged 35, absconded on Friday (6/12).
Omisore is a black man, around 5ft 9ins, medium to large build, weighs 76kg, with short black hair and has a tattoo of a crown on his right arm.
He was last seen wearing a grey tracksuit and a blue top.
He is known to frequent Croydon, London and High Wycombe.
Detective Constable Melanie Cannon said: “If you see Omisore, 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, quoting reference number 43240589998.
“Alternatively, you can provide information anonymously to the independent charity, Crimestoppers, by calling 0800 555 111 or via its website.”