Four Pakistani security men, including an officer, were killed in a rocket attack at a security forces camp in North Waziristan tribal area on Saturday, local TV channel reported.
According to sources, militants fired rockets at a Frontier Constabulary camp in Razmak area of the tribal region, killing four security personnel, the private TV GEO News reported, Xinhua reported.
Security forces, in reply, shelled militants' hideouts in nearby mountains, leaving six militants dead in the action.
Pakistani army are conducting military operations in adjoining South Waziristan tribal area bordering Afghanistan. It has controlled many militant bases in the lawless region, which Washington considers as the center of Taliban and al-Qaeda remnants, but many militants were reported to have fled north to escape the offensive and have retaliated with deadly attacks.