A van driver was killed and his eight passengers were severely injured in Nakhon Ratchasima early on Monday when the vehicle swerved off the road and flipped.
Pak Thong Chai district police were called to the scene on Highway 24 in Tambon Takhu at 4.54am.
Rescuers using metal cutters freed the passengers trapped inside and removed the body of driver Sansern Sirikamnerd, 37.
At press time, police had been unable to interview the survivors about what happened.