
The pre-dawn clash took place in the wooded Thai-Myanmar border area in Ban Den Ya Kad in tambon Muang Na as a team from the 335th border patrol unit, led by Pol Lt-Colonel Rattakorn Inthanin, spotted some armed men carrying bags suspected to contain illegal drugs. They signalled for the men to stop for a search, but the men opened fire at the police instead, resulting in a 30-minute clash. Five bodies of suspects aged 17-36 were discovered later, along with the drugs.