Police are growing concerned for missing man Martin Roberts, who has not been seen, since leaving Northampton General Hospital on Wednesday.
45-year-old Martin was last seen around 6am, leaving the hospital, walking in the direction of Cheyne Walk.
He was last seen wearing a white top with a green sleeveless jacket.
Martin comes from Daventry but was last seen in Northampton and drives a silver VW Polo.
Anyone with any information can call Northamptonshire Police on 101.