The blast occurred at Phandu Chowk in the Khyber Pakhtonkhwa capital. The injured also included a child who works at a nearby hotel and an organizer of a local seminary.
According to investigators, at least 3 kilograms were used in the blast planted in a motorcycle stationed. They said the blast was remote-controlled.
The security forces arrived at the hospital and cordoned off the area.
Sources informed that forces were about to launch a search operation as they believe suspect of the attack could still be present in the area.