
Koh Chang police commander Pol Col Arwat Pibulsawat said the Siam Beach Hotel near the Siam Beach in Kaibae village of Tambon Koh Chang in Trat's Koh Chang district tumbled down at 6 am.
He said a two-year-old child was among the trapped tourists.
Rescuers and local residents were racing against time to try to rescue the trapped tourists.
Koh Chang district chief Kamthon Wehon said the hotel has four rooms and it was built next to a mountain.
Kamthon said the torrential rains caused the land to subside, leading to the collapse. The real cause has yet to be found out, he added.