A police search has been launched for four teenagers who have been missing since Sunday morning.

Jevon Hirst, Harvey Owen, Wilf Henderson and Hugo Morris, believed to be from Shrewsbury, are thought to have been travelling in the Harlech and Porthmadog areas of Gwynedd.

It is believed they had gone camping in the Eryri area.

They were last seen in a silver Ford Fiesta, registration HY14 GVO, police said.