The officers were performing routine duty when their vehicle came under attack. Two passers-by were also injured in the firing and were taken to a hospital.
Following the incident, a heavy contingent of police reached the area and launched a search operation to trace the attackers. Further investigation is underway.
There was no immediate claim of responsibility for the attack. However, militants affiliated with the Tehreek-e-Taliban Pakistan (TTP) have long been targeting security forces in the region, which borders neighboring Afghanistan.
Khyber Pakhtunkhwa recorded 54 terrorist attacks last month, a 50% increase compared with July, according to monthly data compiled by the Pakistan Institute for Conflict and Security Studies (PICSS), an Islamabad-based think tank.
Hossein Amiri - H.Hakimzadeh