A British tourist has been reported missing after a fire ripped through a diving boat off the coast of
Thailand's notorious 'Death Island'.
Backpacker Alexandra Clarke, 26, from Lambeth, was reportedly using the toilet when a blaze erupted from the engine of the wooden vessel near Koh Tao on Sunday morning.
Officials said at least 16 tourists were onboard the boat, named Davy Jones Locker, as well as two crew and four instructors from the scuba diving firm.
They are understood to have been rescued by passing boats but Alexandra was still unaccounted for on Sunday afternoon.
Compressed air in the tanks filled to 3,000psi as well as fuel onboard are understood to have caused the fire to have spread. The toilet is often located at the back of the boat on the bottom deck next to the toilet.
Footage shows how the inferno ravaged the large wooden cabin at the rear of the boat as shocked holidaymakers on passing boats looked on.
Captain Natthaphon Sinpoonphon, Deputy Director of the Thai Maritime Enforcement Command Center of Surat Thani, said the blaze started at around 9 am local time. An emergency call was received shortly after.
He said: 'The boat was carrying a group of tourists for a diving excursion from Koh Tao. It was between five and six nautical miles away from the island.
'A fire started in the engine room and spread through the boat rapidly.
'Thai-MECC Surat Thani coordinated with private vessels and volunteers to safely evacuate the tourists and crew members onto another boat.
'Meanwhile, another team of volunteers worked to control the fire. Preliminary reports indicate that the engine room, captain's cabin, and rear restroom were damaged. The exact cause of the fire remains under investigation.'
Lieutenant Colonel Nattapol Sinpunphol, deputy director of the Surat Thani Marine Department, said rescue teams were initially unable to get close to the boat because of the flames. There were also fears of further explosions from the tanks and fuel onboard.
He added: 'The search is continuing for one missing tourist, a female, Alexandra Clarke, from the United Kingdom.
'The conditions at sea are dangerous with the wind and currents. All boats in the area have been notified. Search and rescue teams were immediately mobilised.'
An FCDO spokesperson told MailOnline: 'We are supporting the family of British woman reported missing in Thailand and are in contact with local authorities.'
Koh Tao is one of the world's most popular scuba diving locations but it has been dubbed 'Death Island' due to the alarming number of young tourists who have died in mysterious circumstances. Dozens have been killed - though the actual number could be much higher, with many deaths covered up to protect the lucrative tourism industry.
