The first bomb was detonated using a walkie-talkie at 11.10am, which left a 180cm wide and 150cm deep roadside crater. The injured rangers, three of whom suffered serious injuries – identified as Master Sergeant Third Class Wichai Ramchuay, volunteer ranger Wayukhun Jittia-arom, and volunteer ranger Mongkol Deejai – were sent to Ra Ngae Hospital.
An hour later another bomb, planted on a tree 100 metres away from the previous spot, went off while the EOD squad and police investigators were inspecting the scene in the presence of media members. Police Senior Sergeant Major Preecha Thongsrimai, Police Sergeant Wittaya Plodlek, Channel 7 reporter Kriya Tohtanee, AFP photographer and journalist Madari Tohlala, Siam Rath newspaper report assistant Muranee Mama and Nation reporters Santhiti Koejitmet and Patidta Noosanthad sustained injuries to their torso from bomb shrapnel.