The bodies of two Canadian sisters have been found in a hotel room on the popular tourist resort island of Phi Phi, Thai police told AFP Saturday, without revealing the suspected cause of death.
The sisters, aged 26 and 20, were found dead on Friday afternoon by hotel staff on the Andaman sea island, 800 kilometres (500 miles) south of Bangkok.
"Their bodies were found a little after midday (Friday). They were sisters," Lieutenant Pongpan Waiyawat, of the island's police force told AFP.
"We have to wait for the post-mortem to determine the cause of death but based on initial investigations there's no sign of violence in their room."
Thailand is a tourist magnet but its image as the "Land of Smiles" has been tested in recent years by deadly political unrest, devastating floods and more recently a bungled bomb plot involving Iranian suspects.