North Wales Police said they had gone missing from the area around Harlech and Porthmadog in Gwynedd.

Officers said the group was last seen on Sunday morning.

The force has expressed concern and is appealing for information to help find Jevon Hirst, Harvey Owen, Wilf Henderson and Hugo Morris.

They were travelling in a silver Ford Fiesta. The car's registration plate is HY14GVO.

The mother of one of the boys said she is "frantic with worry".

"Please please please share and tag anyone in Wales or get in touch with any information you may have," she said in a social media post.

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Locals reported a helicopter had been searching the Penrhyndeudraeth area before heading toward Nantmor and Beddgelert.

Anyone who may have seen the four are urged to contact North Wales Police.