KHAR (INP) - A woman was killed and three others injured when a group of armed militants intruded from Afghanistan into Nowagai tehsil of Bajaur Agency and launched an offensive at the local residents on Sunday. According to sources, a group of militants crossed border from Afghanistan overnight and attacked the residents of Kamangira area, killing a woman and injuring three others. The injured were shifted to Agency Headquarters Hospital for medical treatment. Aman Lashkar opened fired in retaliation at the assailants who fled the area after the resistance.