Police are extremely concerned for the welfare of Lucas Rosario-Hanson.
Sussex Police say "Lucas has been missing from Wolverhampton since Tuesday, December 14 but is believed to be in Sussex."
Lucas, 15, is known to frequent Sussex and the Eastbourne area in particular, as well as Wolverhampton and London.
He is 5’5” and of a slim build, with afro-style hair and sometimes wears glasses.
A spokesperson for the force saif "If you see Lucas, please do not approach him but call 999 immediately, quoting serial 47220007360".