The driver of a pickup truck and his friend were killed and two women were injured early on Thursday when a pickup truck fell into a canal in Phatthalung's Kong Ra after it hit a bridge.
Police said the accident happened in front of a mosque in Moo 6 village in Tambon Klong Chalerm.
The pickup truck got stuck in a bamboo bush and did not sink after it went into the canal.
The driver, Ammarin Innurak, 35, was killed behind the wheel. His friend, Jitnarong Chaiket, 35, fell out of the pickup and was washed away.
Rescuers found his body late on Thursday morning about 200 metres from the crash site.
The two injured passengers were identified as Sinanthinee Sripan, 33, and Napaporn Raipiai, 33.
They told police that the two men had been drinking in Kong Ra.
Police said the driver was apparently drunk, causing him to lose control of the pickup before it hit the bridge and fell into the canal.