A Russian tourist died from using a boat's pleasure slide in Pattaya.

Andrew Anganov, 33, slid off the Pattaya Bay Cruise vessel while on a trip to Koh Sak island, on February 11.

The heavily-built passenger reportedly splashed into the water but complained of severe back pain after returning to the boat deck. He then collapsed, prompting the boat captain to call medics.

Paramedics arrived and found Andrew unconscious without a pulse. Footage shows them pumping Andrew's chest as they tried to resuscitate him.

They rushed him to the Pattaya City Hospital for further treatment but he could not be revived.

Ni, 25, a Burmese crew member onboard, said Andrew started playing on the slide after they docked at Koh Sak island.

He said: 'He went to the back of the boat and slid into the sea. He climbed back on, but he said his back hurt. He went into shock and fell to the floor unconscious.'

Police Lieutenant Suphaphan Mipricha of the tourist police said the Russian arrived in Pattaya on February 9. He was on a boat tour when he collapsed.

He said: 'The Russian national was overweight and weighed no less than 100 kilogrammes (220 lbs).

'Because of his size, it is believed he slammed hard into the water, which may have injured him.

'However, the Pattaya City Police investigators must conduct a post-mortem exam at the Police General Hospital's Institute of Forensic Medicine to determine the specific cause of his death.'

Pattaya, on the east coast of Thailand, has become a popular tourist destination for Russian and Ukrainian visitors escaping the Russia-Ukraine war.