Image copyright Getty Images Image caption Theo Treharne-Jones had been on holiday on Kos with his family from Merthyr Tydfil

A five-year-old boy from south Wales has died while on a family holiday on the Greek island of Kos.

Theo Treharne-Jones from Merthyr Tydfil was found on Saturday.

He is thought to have been found in a swimming pool at a resort on the island, his family in the UK said.

It is believed he was on holiday with his siblings and extended family and was part of a group of ten, who had been on the Greek island since Wednesday.

A spokeswoman for holiday operator TUI said: "We are aware of the tragic incident at the Holiday Village Kos, Greece and our thoughts are with the family.

"Our team in resort is currently supporting the family and we will continue to assist in whatever way we can.

"The safety and wellbeing of our customers and staff is our primary concern and our dedicated resort team is working with the authorities and hoteliers.

"As the matter is currently still under investigation it would be inappropriate to comment further at this time".

A Foreign and Commonwealth Office official said: "We are supporting the family of a British child who died in Kos, Greece, and our staff are in touch with the local authorities."