Police have identified the suspect as the victim's 45-year-old neighbour.
The incident apparently came after a week after the victim uttered profanities against police high-ups in a video.
Police van was deployed for the security of polio workers going door to door as part of nationwide campaign.
DPO says the area where the attack took place is not on security alert.
A case has been registered against the unknown persons; police say the killing appears to be a case of old enmity.
Gun attack on checkpost was followed by a suicide blast at hospital.
Sartaj Khan died on the spot after unidentified assailants opened fire on his vehicle in Gulbahar area, police say.
The station has been established in a fort vacated by Frontier Corps, says KP police official.
Khyber Pakhtunkhwa’s Wildlife Department had taken action after pictures of sandals went viral on social media.
KP Chief Minister Mahmood Khan takes notice of the incident, summons report from the provincial inspector general.
Peshawar police officials brief the media regarding last week's operation, say sole survivor is in CTD's custody.
Peshawar SSP says the number of casualties on the militants' side could be higher.
A total of 3,832 child abuse cases were reported across the country last year, an increase of 11pc over 2017.
SSP Operations Afridi highlights the need for robust legislation that could prevent drug peddlers' release.