Khyber Pakhtunkhwa Senior Minister Bashir Ahmed Bilour was also seriously injured.
According to initial reports, ANP Leader Ghulam Ahmad Bilour was holding a public rally in Kissa Khawani Bazaar of Peshwar when a powerful blast occurred near the gathering.
Many including a police officer, SHO Abdul Sattar, have been killed and over one dozen sustained injuries in lethal bomb blast, added the unconfirmed reports.
The police and rescue teams rushed to the blast site and cordoned off the area. The injured and dead bodies are being move do Lady Reading Hospital.
Many nearby buildings and vehicles, parked near the blast site, have been also damaged in the blast. It is feared that the death toll can mount further as many injured are in critical condition.