The death toll from the terrorist act in a university in Philippines has reached 11, from the previous three, Report informs via The Manila Times.
The incident occurred at the gymnasium of Mindanao State University in Marawi. Another 46 have been injured.
The Islamic State group has claimed responsibility for the attack, according to the AFP news agency.
The Daulah Islamiyah-Maute Group could be behind Sunday's bombing, said Brig Gen Allan Nobleza, the police commander in the region.
Gen Nobleza said 11 of its members died in an encounter with the Philippine Army last Friday in neighbouring Datu Hoffer Ampatuan town - suggesting Sunday's explosion could be a form of retaliation.