A British woman has died after a speedboat reportedly hit a rock and capsized in Thailand.
Another British national was injured in the accident near Koh Samui on Thursday afternoon, the Foreign Office said.
There were 32 passengers and four crew on the boat which was travelling from Mu Ko Ang Thong National Park when it capsized, the Bangkok Post reported.
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."
It is believed there were other British people on board the boat but they are understood to have been released from hospital following treatment for any injuries they sustained.