Security forces killed 30 militants after helicopter gunships targeted their hideouts during a military operation in Kurram Agency on Wednesday.
Sources said security forces are heading towards Ali Sherzai and Zemashq areas after gaining control of the Dambaki area.
Manato, which is a stronghold of terrorists, has also been cordoned off.
A number of families in Kurram Agency have been shifted to safer places.
So far, 550 families have registered themselves as IDPs.
The Director General of the Inter-Services Public Relations Major General Athar Abbas praised the military for reclaiming territory previously under the control of terrorists.
Earlier this week, the Pakistan army announced that it had launched an air and ground offensive in Kurram region on the Afghan border.
Army spokesman Major General Athar Abbas gave few details of the operation in Kurram — a tribal region that had become increasingly used as a refuge for militants.
But he said the offensive aimed to reopen the road to Parachinar, a Shia majority town on the Afghan border that had been virtually cut off from the rest of Pakistan for years and was facing increasing attacks from Sunni militants.
“The operation has been launched with the aim of clearing the region of militants who have indulged in kidnapping and suicide attacks on security installations and forces there,” Abbas said.