PESHAWAR, Pakistan - Pakistani security officials broke up more than a dozen militant sanctuaries in the Khyber tribal region this week and killed 23 fighters, they said, while tribal sources said pro-Taliban groups killed 20 pro-government militants.

The Lashkar-e-Islam and Tehrik-e-Taliban Pakistan (TTP) militant groups attacked villages in the Tirah region and killed residents when they tried to stop them entering the area, the security officials said, requesting anonymity.

Tirah is a maze of valleys on a route from Afghanistan to the Pakistani city of Peshawar.

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