Description:The death toll has gone up to 80 Quetta, Pakistan after a deadly blast the day before. Children were amongst the dead after an improvised explosive devise went off Saturday in the town's main bazaar near a school and a computer center. Officials say the death toll could rise as there are at least 20 hospitalized with severe wounds. A Sunni extremist group that officials say is a formidable force in the region has claimed responsibility for the attack.(0:49)