As per preliminary information, a group of armed ultras fired on a team of security personnel while they were patrolling outside the CAF's camp at Amdai village under Chhotedongar police station limits early this morning.
This led to a gun-battle between the two sides, Narayanpur Superintendent of Police Abhishek Meena said.
However, after a short encounter, the Naxals fled to the dense forests, he said.
"CAF constable Ashwini Singh Rajput was martyred in the incident," the SP said.