Pak soldiers killed at least 30 Taliban militants in gunbattles across the volatile Swat Valley after a suicide bombing on a police station killed 17 cadets, the military said Monday. Soldiers looking for militants after the bombing encountered resistance in several areas and battles raged overnight into early morning Monday, army spokesman Col. Akhtar Abbas said. ''Security forces have encircled a group of militants there and battles went on late into the night,'' he said, adding that 30 militants were killed. A separate army statement said one soldier was killed in the fighting in three separate areas of the valley. The military has said it is restoring security in Swat after a three-month operation to retake control of areas overrun by Taliban militants. Still, suicide attacks and skirmishes continue. The death toll in Sunday's suicide attack rose to 17 as one of the wounded died, local hospital official Ikram Khan said. The bomber sneaked into a police courtyard in the valley's main town of Mingora and detonated his explosives next to a group of volunteers training for a community policing force. The attack was the deadliest since the military regain control of most of Swat in July.