A policeman was killed overnight in Bangladesh after suspected activists of main Opposition BNP and its radical ally Jamaat hurled a bomb at a police van, intensifying tensions ahead of a planned march to Dhaka. The Combined Military Hospital (CMH) in Dhaka said constable Siddhartha Chandra Sarkar, 23, died hours after he was flown to the facility by a private helicopter ambulance from northwestern Rajshahi with fatal injuries. Eight other policemen were also injured and they are being treated at Rajshahi Medical College Hospital (RMCH) after the activists set ablaze the police patrol van using a crude bomb. Doctors said the blast had ripped open Sarkar's lungs.