At least three persons including woman and children were killed and nine others injured on late Monday night when mortar shells fell on houses in North Waziristan agency.
According to Security sources, the casualties took place in Miranshah, the headquarters of North Waziristan, where terrorists attacked a check post.
Officials said security forces retaliated against the militant attack during which few mortar shell landed on nearby houses, killing three people and injuring nine others, including women and children.
Local people and army troops moved the injured to Miranshah headquarters hospital for treatment, sources said.