A total of 529 people were confirmed dead and two people were missing in the floods that have inundated the upper part of the country for almost three months, the Disaster Prevention and Mitigation Department reported on Wednesday.

Two more people were confirmed dead on Tuesday in central province of Phichit.

Central province of Ayutthaya has the highest death toll of 90 people, following by central province of Nakhon Sawan, of which 62 people died in the flood.

Floods were caused by the heavy monsoon "Nock-Ten" and overflow from several dams in upper part of the country since mid July.

On Wednesday, floods still prevail in 24 of 77 provinces and are affecting about 2.8 million people from 1.1 million households.

The flood have affected about 3.3 million households and about 11.3 million people in 64 of 77 provinces since July 25.