KALAYA (INP) - At least eight suspected militants were killed when the army gunship helicopters attacked their hideouts in Orakzai Agency on Saturday. Sources said that on a tip-off, the gunship helicopters fired shells at militant hideouts in the area, killing at least eight suspected miscreants and destroying three hideouts. The govt launched an operation in the agency in March last after militants fled an army offensive in the nearby tribal agency of South Waziristan Agency. Lower parts of agency have been cleared, but the militant threat persists in pockets of the area, said military officials late last year.