Thames Valley Police is appealing for the public to help them trace the whereabouts of a 15-year-old boy from Milton Keynes.
Joshua Howard was last seen at an address in Perricombe, Furzton, Milton Keynes on Sunday (31/7).
He is white, 5ft 11ins and has short light brown hair and hazel eyes. He was wearing navy blue adidas trainers.
PC Chris Bird, neighbourhood officer for Furzton and Shenley, said: “It is now four days since Josh has been seen by his family they are very concerned for his welfare and desperate to know he is safe and well.
“Josh is only 15, but has a number of friends around Milton Keynes and I believe he is still likely to be in the city.
“I would appeal to Josh himself, or anyone with information about him or where he is to contact us on 0845 8 505 505.”