A ranger was wounded in a bomb explosion in Narathiwat's Cho Ai Rong district on Saturday night, police said.
According to Cho Ai Rong police chief Suchart Sa-i, the incident occurred at 9.30pm while a patrol from Rangers Company 4803 was returning to its base after providing security for a mosque at Ban Yaning in tambon Chuab.
While the rangers were on the way back on foot to the base, militants hiding in the dark detonated a bomb with a communication radio.
One ranger, Sayuti, was wounded in the explosion.