SLAMABAD: Pakistan's army says it has killed at least 30 Taliban in battles across the troubled northwestern Swat Valley.

Army spokesman Akhtar Abbas says soldiers looking for militants after a suicide bombing encountered resistance in several areas and that battles raged into the early morning Monday.

The military has said it is restoring security in the valley after a three-month operation to retake control of areas overrun by Taliban militants. Still, suicide attacks and skirmishes continue.

A suicide bomber on Sunday sneaked into a police courtyard in the valley's main town and killed 17 cadets while they were training. The attack was the deadliest since the military regain control of most of Swat in July.