A security forces' vehicle came under attack during election duty in Dera Ismail Khan, resulting in the martyrdom of one officer on Thursday morning, reported 24NewsHD TV channel.
The incident occurred in Kot Azam area of DI Khan District.
The assailants targeted the security forces' vehicle while it was providing security for the election process.
Amid security concerns, the government temporarily suspended mobile and internet services across the country.
Reporter Sajid Baloch