Security authorities on Tuesday tightened security in the southern border province of Narathiwat after a teacher was shot dead on Monday.
Komsun Chomyong, a teacher at Baan Bor Ngo School, was killed as he was returning home from school. Police are seeking the gunman who took the slain teacher's handgun. The homes of suspects have been raided, but the killer has not been found.
Ba-ngokubo village in Bo Ngo sub-district is believed to house armed RKK militants. The authorities believe the gunman is still hiding in the area.
Patrol and teacher protection units stepped up security measures while the school has been closed temporarily in light of shooting. The body of the slain teacher will be returned to his home in the central province of Ratchaburi.