At least 10 militants were killed and eight others were seriously injured in new clashes between security forces and militants in Pakistan's northwest on Monday, according to local TV channel reports.

Ten militants were killed and several others were injured in fierce clashes between security forces and militants in Orakzai tribal Agency and adjoining areas, the private TV GEO News reported.

"Troops destroyed seven hideouts during fresh assault against militants in Shahu Khel of Orakzai area, and are now targeting militants' hideouts in other part of Shahu Khel," the TV said.

More then 200 families migrated from these areas due to tense situation, it added.

It was reported that a full-scale military operation would be launched in Khyber and Orakzai tribal agencies simultaneously to purge the two tribal regions of militants and protect the nearby city Peshawar, the capital of North West Frontier Province, and other major cities from militants' attacks.