The incident happened in Mithra area on the outskirts of Peshawar.
"A remote controlled bomb planted on a motorbike went off as an army vehicle passed by it, killing one soldier and wounding another one," a senior security official told AFP.
A security vehicle – carrying six officials - was targeted in the attack. SP Rural Shakir Bangash confirmed the attack and the number of those killed.
According to bomb disposal squad, around five kilogrammes of explosives were planted on a motorbike parked outside a field on the road. The explosives were detonated with a remote control when the security vehicle passed by.
A local police official also confirmed the incident and casualties.
Nobody has so far claimed responsibility of the attack but convoys of security forces routinely come under militant attacks.
The bodies of the security officials were shifted to a hospital, while the area was cordoned off for initial investigation.
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