TRAT: Ferry services and coastal and waterfall tours were halted after water runoff flooded low-lying properties on Koh Chang after torrential rain and rough seas.

Local officials reported runoff and overflowing canals on the island following more than two days of torrential rain. Several roads, bridges and properties near waterways were damaged.

Motorists were advised to stay away from flooded roads and bridges due to powerful currents, which already engulfed several vehicles.

The management of Mu Ko Chang National Park closed Khlong Plu and Tan Mayom waterfalls, which were flowing heavily. It also suspended coral tours on Ko Rang island due to rough seas.

Floodwater was reportedly 30-50 centimetres deep in some villages. Several properties near waterways were at least one metre under water. Strong currents slammed branches and logs against bridges.

Severe runoff occurred on Sunday morning. The levels of local canals were fluctuating as runoff from the island's mountainous terrain continued. Local authorities said they might ask the navy to pick up tourists if rough seas continued.