An unidentified motorcyclist hurls a grenade at a school before firing shots , police say . Caretaker Prime Minister Mir Hazar Khan Khoso condemned what he called a cowardly attack on innocent children , the official Associated Press of Pakistan ( APP ) news agency reported . A school principal is killed in the attack in Karachi 's Baldia Town area , police say . Eight others , including a teacher and students at the school , are injured . The Taliban claim responsibility for the attack on its website.
An unidentified motorcyclist hurls a grenade at a school before firing shots , police say . A school principal is killed in the attack in Karachi 's Baldia Town area , police say . Eight others , including a teacher and students at the school , are injured . The Taliban claim responsibility for the attack on its website.