Indian Border Security Force (BSF) gunned down a Bangladeshi national on Bamonpara border under Sapahar upazila yesterday.
The victim was identified as Tozammel Haq Kalu, 48, a cattle trader.
Locals said the Indian border guards of Naiorkori outpost opened fire when Kalu along with eight others was going to Bamonpara border from Sapahar in the morning.
Kalu received bullets and died instantly. The BSF men then took away the body.
Immediately after killing, BDR protested the incident and asked its Indian counterpart to return the body. But the BSF personnel of Naiorkuri outpost resorted to unprovoked fire at Bamonpara outpost of BDR in the afternoon, forcing the Bangladesh border guards to retaliate.
BDR and BSF have declared red alert along the 179-km border of the district and mobilised additional troops and artillery.
Local BDR Commander Lt Col Zahid Hasan confirmed the incident. He said they are ready to face any eventuality.