Sawangboriboon medics were alerted, last night, to a serious road accident on the Sriracha to Kao Maikaew-Bowin, Kao Maikaew highway, Banglamung.
At the scene medics treated two men and a woman who were travelling in a white Honda Jazz, which had extensive front-end damage.
Another man, in the front seat, had been killed by the impact. The two other men later died on the way to hospital.
The driver of the second vehicle involved in the accident, forty-three-year old Mr Kiatisak Pewpan, told investigators that he had been driving towards Rayong when he was hit by the Honda. He said three of the passengers were thrown from the car.
The police are not sure who was driving the car but have identified the victims as Cambodian nationals aged between 20-25 years old.
The survivor, an unidentified Thai woman aged between 25-30 years old, remains in a coma at Bangkok-Pattaya Hospital.
Investigators are assuming the driver fell asleep at the wheel.
Report shared by Pattaya One News Team