Three people including a former Senator Hidayatullah Khan were martyred and three others injured in a roadside bomb blast in Dama Dola area of Bajaur today.According to Rescue 1122, the injured were shifted to Tehsil Headquarters Hospital Khaar.Meanwhile, President Asif Ali Zardari has expressed deep grief over the death of former Senator Hidayatullah and others in bomb blast.In his message, he strongly condemned the terrorist incident and ommiserated with the bereaved families.Source: Radio Pakistan