BANNU: The police and the bomb disposal unit (BDU) officials defused three hand-grenades and two rocket shells in the limits of the Miryan Police Station on Saturday, official sources said. They said that acting on a tip-off regarding the presence of hand-grenades, the police along with the BDU officials reached Jangikhel area and defused three hand-grenades, two rocket shells and one anti-tank mines after besieging the area.