Friends of teenager missing in Tenerife urge UK and Spanish police to aid search

Jay Slater, 19, reported missing on Monday morning after phoning friend while walking in vast nature reserve

Friends of a British teenager who disappeared in Tenerife have urged British and Spanish police to send reinforcements to aid the search as they have resorted to hunting for evidence and interviewing potential witnesses themselves.

Police on the island have been looking for Jay Slater, a 19-year-old apprentice bricklayer from Lancashire, since Monday morning with the help of drones and a helicopter.