According to police officials, the vehicle parked nearby the spot of explos Jamiat Ulema-e-Islam-Samiul Haq (JUI-S) chief Maulana Hamid-ul-Haq was among three ion caught fire soon after the incident, reported Ary News.
Police said the injured and the deceased were transferred to a nearby hospital.
The blast occurred at a time when Pakistani security forces killed 16 suspected terrorists when they attempted to attack Bannū Cantt.
The deceased reportedly included four suicide bombers.
Pakistan has witnessed a spike in terror attacks in recent years.
Recently, Jamiat Ulema-e-Islam-Samiul Haq (JUI-S) chief Maulana Hamid-ul-Haq was among three people who died after a suicide blast occurred in Akora Khattak’s Darul Uloom Haqqania.
According tor reports, the blast occurred after Friday's prayer inside the seminary.