
Kanit Lamnui, 38, was shot dead by unknown attackers soon after he drove out of the Ban Kameng School in Yala's Raman district.
Several other incidents were also reported in the deep South yesterday.
Five teashop customers, including a nine-year-old boy, in Narathiwat sustained severe injuries after a gunman opened fire, while a roadside bomb was defused before it could cause damage in Yala.
Police believe the teashop attack was connected to the unrest in the deep South.
Doromae Bukoh, 56, said eight people were at his teashop in tambon Bang Por of Muang district when a motorcycle pulled up and the passenger walked in.
"He whipped out a pistol and shot at my customers one by one, prompting the others to run for their lives," he said.
The gunman fled on the same motorbike.
The wounded were defence volunteer Arong Muya, 45, Jehsoh Jehnu, 48, Mhadyusoh Sama-ae, Nusent Mameng and nine-year-old Saifoon Mana, 9. The victims were treated at Naradhiswasrajanagarindra Hospital.
In Yala, residents of Meeding Village in Raman district noticed some electric wires under the surface of a road and alerted the police, who removed and defused 20-kilogram bomb from the site.
A police source said militants might be targeting soldiers who were scheduled to visit the village to help a disabled woman.
"Had the locals not tipped off the police, the troops might have been hurt or killed," he said.
Sofwan Sama, the chief of operations for the insurgency, might have been responsible, he said.
Sofwan is wanted for his role in many security-related cases.