BSF personnel from Daharkanda and Padmabila camps in Swarupnagar in 24 Parganas district fired five bullets at Hijaldi BDR camp at about 2am. BDR replied with 17 shots, Lt. Col. Khan Asadur Rahman, Commanding Officer of 41 Rifles Battalion said. No casualty was reported.

BDR has been put on alert as BSF reinforced its strength and intensified patrol, he said.

Tension is prevailing along the border since June 12 when a BSF personnel was killed in cross-border firing by border guards after some BSF troops intruded into Bangladesh territory in Hijaldi.

BDR sources said, after the incident, BSF dug bunkers and its troops are on red alert in the area.