Separatist Islamic militants have killed five people, beheading one of them, in a spate of attacks in Thailand's Muslim-majority south, police said on Tuesday.
Four Muslim men who were part of a volunteer defense force were killed early on Tuesday when militants ambushed their truck in Yala, one of three provinces wracked by a four-year insurgency along the southern border with Malaysia, police said.
After the shooting, the militants beheaded one of the victims, police added.
Beheadings and mutilation of corpses has become an increasingly common tactic of the insurgents, who often leave the bodies in public view to terrify passersby.
Late Monday in Yala, a Myanmar migrant worker was also shot dead, they said.
Two soldiers were also injured Tuesday in Yala when a roadside bomb exploded near their vehicle, police said.
More than 2,700 people have been killed since the unrest broke out in the region, which was an ethnic Malay sultanate until Buddhist Thailand annexed it a century ago, provoking decades of tension.