At least two persons were gunned down and two others were severely injured in separate incidents in the provincial capital on Monday. In the first incident, unidentified armed persons opened indiscriminate firing on a passenger coach on Saryab Road. As a result, the bus conductor, identified as Shamsullah, died on the spot. Police reached the spot upon getting information and took the dead body into custody for autopsy. Later, police registered a case and started investigation. Elsewhere in Noshki, one man was shot dead while two others received serious wounds after unidentified attackers shot at oil tankers moving to Quetta from Karachi. The local administration rushed the injured to a hospital.