US
More than six militants attacked Kalingar security forces check post in Miramshah, headquarters of the agency.
Mullah Sangeen Zadran died along with five others in drone hit, including three suspected al Qaeda fighters.
Convoy was ferrying army and FC troops to Miramshah.
Latest strike is the first in a little less than two months; draws condemnation.
Drone fired two missiles at suspected militant compound.
The attack occurred around 1:30pm, said an official of the security forces.
Militants target a convoy of forces going to Bannu from Miramshah with IED.
Forces mistakenly gunned down a tribesman for violating curfew.
Nine other houses damaged in crossfire.
The attack came two days after Prime Minister Nawaz Sharif said the United States must call off the drone campaign.