Peter Gilheney disappeared from HMP Standford Hill, in Eastchurch, on Monday. Kent Police said the 29-year-old, failed to return after a short release period.
Gilheney, is described as 5ft 2ins, with a stocky build. He is the fourth prisoner to escape from HMP Standford Hill this year.
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Kent Police have released an e-fit image of a man they are trying to trace following an attempted robbery and sexual assault.
Tuesday afternoon's forecast for the east of the region
Tuesday afternoon's forecast for the west of the region