NEW : Baloch militants are blamed for one attack ; Sunni militants , for a double - attack . Police say the death toll from the bomb blasts in Quetta has risen to 40 . A separate blast in the Swat Valley kills 21 people . A three - day mourning period begins in the restive province of Balochistan .
NEW : Baloch insurgents are blamed for one attack ; Sunni militants , for a double-bombing . Police say the death toll from the bomb blasts in Quetta has risen to 97 . A separate attack in the Swat Valley kills 21 people . A three-day mourning period begins in the restive province of Balochistan .