Officials said suspected militants attacked the post near Miranshah, capital of the North Waziristan tribal region, early this morning.
The assault is reported to have continued for a number of hours. No casualties among the attackers were immediately reported.
The attack came days after eight Pakistani troops were reported killed on 7 January in an assault on another post in the region.
Pakistan has deployed thousands of forces in an effort to stop Taliban and Al-Qaeda militants and their local allies from operating along the mountainous Pakistan-Afghan border region.
BACK IN THE GROOVE Decades of war and the Taliban's five-year ban on music took their toll on Afghan classical music. Musicians have been trying to resuscitate the art since the end of Taliban rule. But they face serious economic and artistic challenges -- including the threat of possible attack by Taliban fighters if they perform in provincial areas...(more)