The administration of Bajaur Agency said that unknown miscreants targeted the vehicle of Malik Mohammad Younis, a noted elder of the Salarzai tribe with a bomb planted on roadside near Gul Shah village at Khar.
As result of the explosion, Younis was killed on the spot and his two sons Ejaz and Hazrat Noor sustained wounds. The injured were shifted to hospital.
Security forces cordoned off the area and launched a search operation for the assailants.
However, officials said Younis had supported the military operation against militants and was active in organising local tribes to combat them.