A plane carrying tourists to a southern resort island crashed Wednesday during heavy rains, and police said all 37 people aboard were killed.

The Bangkok Airways turboprop crashed as it was approaching the airport on Koh Samui, said Prateep Pakdeepol of the island's police station. The island's police chief, Pitipong Kansan, said it appeared the rains caused the plane to crash into a coconut grove.Prateep said there were 33 passengers, including an infant, and almost all were foreign tourists. There were four crew members on the flight from Bangkok.

The passengers included 29 foreigners, said Hiroshi Enomata, first secretary of the Japanese Embassy in Bangkok. Among them were five Japanese, he said.

No information on other foreign nationals was immediately available.

The 50-minute flights from Bangkok usually are packed with foreign tourists to the beaches of the island on the Gulf of Thailand, about 300 miles south of Bangkok.

An aviation official in Bangkok said the Dash 8 aircraft lost contact with the control tower about 3.5 miles from the airport. The official spoke on condition of anonymity.