Gerry Sergeant failed to return to Hollesley Bay prison after going to his work placement in Bury St Edmunds.
Gerry Sergeant, 61, was due back at the prison at 8pm on Friday after attending a work placement, but failed to return.
He had been due to come back from Bury St Edmunds by motorbike, police said.
Police have urged members of the public not to approach Sergeant if they see him.
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He has been described as 5ft 11in, thin, with brown eyes, white hair and tattoos on both forearms.