Jevon Hirst, Harvey Owen, Wilf Henderson and Hugo Morris disappeared during camping trip in Gwynedd
A police and mountain rescue search has been launched for four teenage boys who vanished during a camping trip in north Wales.
Jevon Hirst, Harvey Owen, Wilf Henderson and Hugo Morris are thought to have been travelling in the Harlech and Porthmadog areas of Gwynedd, North Wales police said.
