BANNU: The police arrested 40 suspected persons, including 10 proclaimed offenders (POs), during search and strike operation in various areas in the district on Tuesday, police said. They said that the police launched search and strike operation in various areas falling in the limits of the Mandan Police Station and arrested 40 suspects including 10 POs. The law-enforcers also seized two Kalashnikovs, five handgrenades, four guns, 16 pistols and ammunition. The held persons were shifted to the concerned police station where further investigation was underway.