Nigeria
Voters in Nigeria go to the polls for state governor elections.
Sources: CNN
Sources: CNN
At least 40 people are killed during an attack by Boko Haram gunmen in Dumba, Borno State, Nigeria.
Six people are killed after a building collapses in Lagos, Nigeria.
A bombing at a football match in the town on Mubi in northeastern Nigeria kills at least 40 people.
Suspected members of Boko Haram attack a church in northeastern Nigeria, killing six people.