Train services have been halted by a landslide and flooding on the northern line between Lampang and Chiang Mai stations, the State Railway of Thailand announced on Monday.
The section of the line would remain closed until further notice, the announcement said.
A landslide and runoff damaged the track between Mae Tan Noi station in Lampang and Tha Chompoo in Lamphun on Sunday night.
All northern-bound trains to Chiang Mai are stopped at Lampang station. Return trips to Bangkok are leaving from Lampang. Train passengers are being bussed in both directions between Chiang Mai and Lampang.
The Meteorological Department issued a nationwide storm warning on Monday. Rain and thunderstorms are forecast for most of the northern region until Tuesday, including Chiang Mai, Lampang and Lamphun, the department said