Central provinces, including the capital Bangkok, have been warned of possible flooding as the Irrigation Department plans to release water from the Chao Phraya Dam to keep it under capacity.

Flash flooding in popular Thai tourist hotspot Chiang Mai has killed three people, a health official said Sunday, as visitors evacuated hotels through knee-high muddy water and shops closed in the city centre.

Flooding in Chiang Mai's city centre also shuttered the central train station and forced tourists to evacuate hotels.