The airstrikes were part of an ongoing military assault in predominantly lawless North Waziristan tribal region, bordering Afghanistan.
Cobra gunship helicopters targeted militants after jets hit their positions in North Waziristan and Khyber tribal regions, a military spokesperson said in a statement.
An initial round of airstrikes killed 18 militants this morning. "Thirty more terrorists were killed and nine vehicles and several motorcycles belonging to terrorists were also destroyed," the army said.
In the restive Bajaur Agency, a remote-controlled bomb hit a school van in which two adults, three women teachers and a passerby was killed.
Also Read
The explosion completely destroyed the van, which was reportedly carrying its occupants to a local community school, in Salarzai area near Khar, the army said.
No one claimed responsibility for the attack but Taliban militants are against women receiving education and have often target educational institutions and people involved with the work.
Pakistan launched the long-awaited military assault in the North Waziristan tribal region, considered a stronghold of Taliban and other militants, on June 15 to avowedly flush out insurgents and regain full control of the district. The Pakistani ground forces moved in on June 30.
About 550 militants and over 35 soldiers have been killed in the operation, named Zarb-e-Azb, which has also displaced close to one million people.
The military assault was launched after a brazen attack by militants on Karachi airport in which 37 people died including all 10 terrorists.