CHARSADDA: Police arrested 28 suspects including 15 proclaimed offenders (POs) during a crackdown in Tangi area of the district, official sources said on Wednesday. The raids were conducted on the directives of District Police Officer Sohail Khalid. Police said they also recovered a machine gun, a Kalashnikov, ammunitions, two kilogrammes of opium and a kilogramme of hashish. Police registered cases against the arrested men and started an investigation.