In the incident, which took place at 1pm local time, the family of three – the 36-year-old woman, her 38-year-old husband and their daughter – were on a Poda Island tour.

Governor of Krabi province Passakorn Bunyalak believed the boat capsized after being hit by a huge wave.

“The mother and her daughter were unconscious when fishermen found them,” Bernama reported him as saying.

The victims were then brought to shore at Klong Sai Pier and rushed to Krabi Hospital, before being pronounced dead.

Passakorn added that the woman’s husband and the 45-year-old Thai boat operator survived and are recovering well under close supervision at hospital.

The Malaysian consul general in Songkhla, Ridzuan Abu Yazid, said they would help the family repatriate the remains to Malaysia.