
A security forces convoy was reportedly the target of the attack.
According to initial reports, a remote-controlled bomb - planted on the side of a road in Karam Kot - exploded when the vehicle passed by.
The attack comes after Pakistan Air Force (PAF) jets bombed hideouts of suspected militants in Dattakhel area of North Waziristan, killing over 50 terrorists.
The air force also carried out shelling in the Mirali earlier on Sunday morning.
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