Thames Valley Police is appealing for the public’s help in locating a missing boy from Bletchley.
Joshua Ngienga, aged 15, was last seen in Bletchley at around 8am on 25 February.
He was wearing a black tracksuit, black Nike trainers and a black coat as well as carrying a black Adidas rucksack.
PC Katie Pollard, based at Milton Keynes police station, said: “We are becoming increasingly concerned for Joshua’s welfare and are appealing for the public’s help in locating him.
“If anyone has seen Joshua, or if you think you know where he may be, please call 101, quoting reference 4322086330.”