Islamabad ? Helicopter gunships destroyed a training camp for suicide bombers in Pakistan’s northwestern Swat Valley, killing six Taliban fighters in an area the government had already declared clear of militants, an official said Saturday.

The camp’s trainees — including teenagers — were responsible for at least three attacks in recent weeks, an army spokesman said.

Pakistan’s army says it is restoring security in Swat and surrounding areas after a three-month offensive wrested the valley back from Taliban control, but suicide attacks and skirmishes continue, with reports Saturday of scattered violence killing at least 12 more suspected militants.