Seventeen people drowned overnight as flood waters moved through central Thailand, the government said on Tuesday, bringing the toll from flooding here and in neighbouring Myanmar to 92.
Seventy-three people have died in Thailand since severe flooding began in late August in the country's central and northern provinces, the interior ministry said in a statement.
Three people remain missing, as flood waters in much of the country are receding, the ministry said.
The water that inundated northern Thailand is slowly working its way south, and 16 of the nation's 76 provinces are still suffering from the floods.
At their peak last week, the floods triggered by heavy rains from Typhoon Xangsane affected 46 provinces.
In neighbouring Myanmar, official media said 19 people had died in floods across the central and eastern parts of the country. In most places, the water has already subsided.
All of the victims in Myanmar were in the region around the central city of Mandalay, where the floods wiped out part of the road leading to the airport.
Thai weather authorities say they expect unusually heavy seasonal rains to wreak havoc in central and northern Thailand until the end of October, before moving south.