Thailand, Jan. 11 -- Gunmen disguised as state security personnel fatally shot four paramilitary volunteers guarding a school in insurgency-wracked southern Thailand, police said.

The attackers approached the armed territorial defense volunteers at the school in Pattani province and shot them dead shortly before noon Thursday, police Lt. Col. Wicha Nupannoi said. They seized four HK33 assault rifles from their victims before fleeing, scattering nails and other material on the road to delay pursuers, he said.

Predominantly Buddhist Thailand's three southernmost provinces of Pattani, Yala and Narathiwat have been plagued by a Muslim separatist insurgency that has claimed the lives of about 7,000 people since 2004, according to the researc...