The passenger van carried 13 Burmese migrant workers from Pathum Thani to be sent to Mae Sot district of Tak. As the van was travelling on Pahonyothin road in Tambon Nakhon Chum, Muang district of Kampaeng Phet, the driver, identified as Chartchai Phupanee, 49, for unknown reason, slammed the vehicle into the rear of a trailer truck.
The van then lost control and crashed into a roadside tree. Two female passengers were thrown out of the van by the force of the collision impact and died.
The rest of the passengers, including the driver and his wife, were injured. All of them were later taken to Kampaeng Phet provincial hospital for medical treatment.
The trailer truck driver, Mr Wisan, said he was driving his vehicle on the left side of the road when, out of a sudden, he felt a strong impact at the rear of the truck.
The van driver, however, was injured and unable to talk to the police.