Three tourists have been killed after a speedboat capsized off Koh Samui.
Monica Cozma, 28, from Britain, Kafo Franeiska, 29, from Germany and a third woman from Hong Kong died while a British man, Jason Parnell, was still missing a day after the accident.
The vessel, returning from a scuba diving trip, had 32 tourists and four crew onboard when it flipped over near rocks in choppy water. Many of the passengers were seriously injured.
The women are understood to have drowned after being trapped underwater.
Seas at the time are said to have been ‘rough’ with many trips in the area cancelled that day.
A passing boat rescued several tourists while others had to wait for rescue workers.
‘We are supporting the family of a British woman who has sadly died following a boat accident near Koh Samui, Thailand,’ a British Foreign Office spokesman told MailOnline.
‘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.’
Pictures posted online show the underside of the speedboat, named Aang Thong Discovery 3, floating next to rocks.
Thai locals waded through the water and clambered on top of boat as they tied ropes to it to bring it under control.
The tourists, including one Thai, were British, German, Romanian and Chinese citizens.
The boat had left Mu Ko Ang Thong National Park and was in Cape Khaki when it overturned on Thursday afternoon. The vessel had been travlling to Lomphraya pier near Wat Na Phra Lan.
Thai Government officials said that the speedboat was not overloaded as it had a capacity to carry 45 passengers.
They claimed bad weather may also have played a role in the accident, as the area is known for heavy winds
Koh Samui is one of Thailand’s most popular holiday islands. It is in the Gulf of Thailand off the Surat Thani province.
Speedboats are the used extensively in Thailand to ferry tourists to islands and on day trips.
It is not known if the weather conditions contributed to the accident. However, the start of the rainy season often brings heavy storms and rough seas.