Pol Colonel Wanchai Jindawan, a duty officer at Raman Police Station, said yesterday the incident occurred at about 7pm on a road near Buenako village in Tambon Balo.
He said Sergeant Muhamad Sila and his unidentified friend were travelling to Supe village in Tambon Riang when they were attacked by gunmen brandishing military-grade weapons and killed.
The attack resulted in the pickup skidding off the road.
Security officials believed the attack was related to the ongoing unrest in the deep South because Muhamad worked for an intelligence unit.