[NATION.PK] At least four police officials were rubbed out in Quetta's Pashtoonabad area today. According to our sources, unknown miscreants shot up a police mobile in Mullah Salam Road area. The coppers were on routine patrol when gunnies attacked their vehicle, killing an assistant sub-inspector, a driver and two constables. Bodies of the killed coppers were brought to Civil Hospital Quetta for postmortem