Nigeria's Buhari wins second term as president: electoral results

ABUJA (Reuters) - Nigerian President Muhammadu Buhari on Tuesday won a second term at the helm of Africa's largest economy and top oil producer, a tally by Reuters based on electoral commission results showed. (Reporting by Paul Carsten, Alexis Akwagyiram, James Macharia and Camillus Eboh; Editing by Leslie Adler)