Police say a teenage boy, who has been missing from his County Durham home for two days, is "extremely vulnerable".
Shaun Michael Stewart from Wordsworth Gardens in Dipton, was last seen on his bicycle in the village at around midday on Friday.
He is described as an immature 15-year-old who attended a school for children with emotional and behavioural difficulties.
He had no money or food and police say he urgently needs to be found.
The teenager was riding an old-style brown mountain bike when he went missing.
Ch Insp John Bell of Durham Police said: "Sean is a friendly, easily-led lad, who has few friends in the Dipton area.
"He is clearly vulnerable and in view of the fact he has no food, money or a change of clothes we need to find him as soon as possible to make sure he is safe and well."