ROUGH CUT (NO REPORTER NARRATION)<br/> <br />STORY: Attackers hurled a grenade at a paramilitary truck, killing at least four officials and wounding six others including two civilians in Pakistan's biggest city Karachi on Wednesday, paramilitary Rangers and hospital officials said.<br/> <br />The attack took place near a Rangers headquarters in the Landhi neighborhood in the east of the city.<br/> <br />Initial reports suggested it was a bomb which had been detonated remotely, but later the officials said it was a grenade.<br/> <br />A Rangers spokesman confirmed the number of deaths and said the vehicle, with a dozen personnel on board, was returning from duty when it was attacked.<br/> <br />The vehicle was completely damaged in the blast.<br/> <br />Security officials cordoned off the area and the injured were transported to hospital.
