Srinagar: Two BSF troopers were killed and 11 others, including three civilians, were injured on Friday in a guerrilla attack at a security forces convoy in south Kashmir's Bijbehara town, police sources said.

Police sources here in Srinagar told IANS that "a BSF convoy coming from Jammu to Srinagar was attacked by militants on the highway in Bijbehara town of Anantnag district".

Following the attack, heavy exchange of fire was underway in the town situated on the 300-km Jammu-Srinagar National Highway No.1A, according to eyewitness.

The injured BSF troopers have been shifted to a Srinagar hospital, the police sources added.

The attackers were holed up inside the government sub-district hospital building.

The eyewitness said security forces immediately cordoned off the area after the attack which sparked panic in the area. Traffic on the busy national highway was also suspended.