Sussex Police is concerned for the welfare of Brighton teenager Mustapha Slimani, who has not been seen since early September.
Mustapha, 17, hasn’t been seen at his home since August 29 and was due at an appointment on September 4, but didn’t show up.
Officers said there are concerns for his welfare and it is thought that he may have travelled to Manchester. However, he may still be in the city and he also has links to Worthing.
He is of north African appearance, 5ft 6, of slight build, with distinctive front teeth and dark brown curly hair.
Police said he habitually wears football shirts and other sportswear and may be using the name Ouahid Ghemaza.
Anyone with information about his whereabouts is asked to report it online or call 101 quoting reference 47180138394.