Two Welsh teenagers have been arrested in Thailand prompting a police investigation into the “circumstances” behind their trip.

South Wales Police said it had “limited information” on the arrests of the 17-year-olds from Cardiff.

The Foreign, Commonwealth and Development Office (FCDO) has been in contact with Thai authorities, while police officers are “gathering as much information as possible”.

“We understand this is a very concerning time for the families and wider community,” said the force.

The FCDO confirmed it was “supporting two British nationals detained in Thailand and is in contact with the local authorities”.