Officers are appealing for help to find missing 15-year-old Aiden Ward from Bourne.
Aiden has been missing since Friday from his home and is believed to still be in the area.
He is white, of slim build, around 5ft tall, with brown hair and brown eyes.
Police have said he was last seen wearing a grey ‘Superdry’ hooded top, black jeans and black trainers.
Anyone who has seen Aiden since Friday, or who has information about his whereabouts, should call Lincolnshire Police on 101, quoting incident number 217 of September 6.