Muhammadu Buhari called the violence “sad, unfortunate and totally unwarranted.” He also said the election “is purely a political manner” and should not be turned into a religious or ethnic conflict.

On Wednesday, the cries of children could be heard at a hospital in the northern town of Kaduna, where wounded people lay outside the emergency ward.

Muslim rioters burned homes, churches and police stations in Kaduna after results showed Nigeria’s Christian leader beat Buhari in Saturday’s vote. Reprisal attacks by Christians began almost immediately.