Nigerians have begun burying victims from Sunday’s attack near the city of Jos that left more than 500 people dead in the latest incident of religious violence. A group of Muslims have been blamed for massacring predominantly Christian villagers. The attack was apparently done in retaliation for the killings of some 150 Muslims in a nearby town in January. The city of Jos lies at the crossroads of Nigeria’s Muslim north and predominantly Christian south. On Monday, UN Secretary-General Ban Ki-moon condemned the violence.

Ban Ki-moon: “I’m deeply concerned that there has been more interreligious violence with appalling loss of life. I appeal to all concerned to exercise maximum restraint. Nigeria’s political and religious leaders should work together to address the underlying causes and to achieve a permanent solution to the crisis in Jos.”