An estimated 50 percent of Malawian girls becoming child brides, and approximately one in eight girls are married by 15.
Nigeria accounts for 13 percent of global maternal death rates, with 36,000 women dying in pregnancy or child birth each year, and child marriage rates across Nigeria often outpace those in other nations around the world.
The African Union launched its first campaign to curb child marriage in Africa last week, in cooperation with African governments, UNICEF, the UK Department for International Development, and several civil society organizations.
Nigerians are demanding that their government do more to bring home the roughly 200 girls who were kidnapped more than two weeks ago on April 14 by the militant insurgency group Boko Haram.
According to a 2010 report by the Social Affairs Ministry, more than one-quarter of Yemen females marry before the age of 15.