Seven “wartime” grenades and 47 bullets were recovered from a septic tank of Naogaon Sadar Hospital yesterday afternoon, reported UNB.
Naogaon Sadar police station OC M Jakirul Islam said the hospital authorities had hired workers to remove three old septic tanks in order to construct a new building there.
At one stage, the workers found a hand grenade inside a septic tank around 1pm, after which the authorities postponed the digging work and informed Naogaon Sadar Model police station.
Later, a team of police rushed to the spot and recovered seven hand grenades and 47 bullets of Chinese rifle from the tank.
OC Jakirul said Pakistani soldiers might have left the ammunition during the Liberation War in 1971 as a Punjab monogram was inscribed on them.