A British woman has died and a British man is feared missing after a speedboat capsized near Koh Samui, Thailand.
Another British national was injured in the accident, the Foreign Office said.
Thai tourist police said 32 passengers and four crew were on board the Ang Thong Explorer, which was travelling from Mo Ko Ang Thong National Park when it hit a "big wave" and capsized at 5pm local time.
A second woman from Hong Kong also died, while a British man and German woman are missing, police added.
Several people were rescued by another speed boat while the rest were picked up later by an official rescue boat, the Bangkok Post reported.
Two bodies were recovered from the sea.
A spokeswoman for the Foreign Office said: "We are supporting the family of a British woman who has sadly died following a boat accident near Koh Samui, Thailand.
"Another British national has received treatment in hospital for injuries suffered in the same incident. We remain in contact with local authorities in Thailand for further information."
