Police were alerted at 10.30am that Abdulloh Muyadeng, 27, who was riding a motorcycle from an army base in the district to a village, had been shot in his right cheek.
Rushing to the scene, police found traces of blood and his motorcycle abandoned there.
Abdulloh was rushed to Bannang Sata Hospital and then transferred to Yala Hospital in a critical condition.
The initial police investigation revealed that an unknown number of insurgents hid along the roadside and fired at the victim before speeding away. Abdulloh had previously joined security teams to crackdown on the insurgents.
Police believe that the insurgents wanted to create a disturbance in the area.