Three soldiers were injured when a suicide bomber rammed his explosives-laden car into a checkpost of security forces in Khyber district on Wednesday morning, reported 24NewsHD TV channel.
The attack took place at Dara Jamaat checkpost in Tirah Valley of Khyber District.
Tirah police station SHO Muslim Khan said three security forces personnel were injured in the suicide attack.
The SHO said the injured have been rushed to a nearby hospital.
About a month ago, a motorcycle-borne suicide bomber had hit a military convoy in Bannu District of Khyber Pakhtunkhwa, killing nine soldiers and wounding several others.
Reporter Jehanzeb Afridi