Police on Thursday recovered three drums of liquor from an ambulance and arrested four persons. Spokesman of Punjab Highway Patrolling Police said this in a statement here on Thursday. According to detail, Patrolling Police Post Chuk Meeu District Jhelum stopped a suspected ambulance bearing registration number LED/4010. During the search of the vehicle the police recovered three drums of liquor and arrested four persons identified as Abdul Rehman, Muhammad Imran, Imran Mehboob and Imran. The Police have registered case against the culprits and started investigation.