According to Inter-Services Public Relations (ISPR), Pakistani forces jet fighters pounded militant hideouts in Tirah Valley killing 20 suspected militants in the attack.
The death toll of terrorists is likely to increase.
Stockpiles of explosives and ammunition were also destroyed in the airstrike.
Security forces launched military offensives in North Waziristan and Khyber Agency tribal areas after a series of terrorist attacks in the country.
According to sources, more than 1000 terrorists have been killed in the military operations so far.