Shopian, Feb 26 (ANI): Six civilians sustained injuries in a grenade blast in Jammu and Kashmir on Thursday. The injured were rushed to a nearby hospital. Among the six, one is critical. The blast occurred while civilians were cleaning debris near their houses in Shopian district after the gun battle between security forces and militants concluded on Wednesday. Security forces in the state gunned down three militants on Wednesday in the encounter, which injured two soldiers and one officer.