The province was swamped by relentless downpours since the evening and the main canal that runs through the heart of the district overflowed, flooding the business area at midnight.
The main road between Sa Kaew and Chanthaburi provinces was flooded for about two kilometres from Ban Suan Pa village to Ban Saphan 7 from 6pm.
Wang Nam Yen Municipality mayor Wanchai Nareerak personally led officials to direct traffic at the flooded part of the road throughout the night.
The flood waters on the road subsided at about 5am.