 Three people were killed and nine wounded when an explosion ripped through a Catholic mass in a university gymnasium in the southern Philippines on December 3. Police said Lani Odelser Governor Mamantoladeong Jr. took stock of the investigation at the blast site at Mindanao State University and later visited the wounded in hospital, photographs released by the local government showed. I condemned the violent bombing incident that transpired this morning. He said terroristic attacks on educational institutions must also be condemned because these are places that promote the culture of peace. The police said one angle being pursued was possible revenge by pro-Islamic state militants. The blast occurred in Marawi, a city besieged by Islamist militants, in for five months in 2017. The Philippine military said on Saturday they had killed 11 militants, including members of the Dala Islamiya Philippines, a pro-Islamic state group, in a military operation the day before, in Maguindanao del Sur province.