ABUJA, Nigeria (AP) — Nigeria's president was declared the clear winner of a second term in Africa's largest democracy early Wednesday, after a campaign in which he urged voters to give him another chance to tackle gaping corruption, widespread insecurity and an economy limping back from a rare recession.

KANO, Nigeria (AP) — Nigeria's electoral commission delayed the presidential election until Feb. 23, making the announcement a mere five hours before polls were set to open Saturday. It cited unspecified "challenges" amid reports that voting materials had not been delivered to all parts of the country.

Residents of Africa's most populous nation and largest democracy will soon wake up to outrage. Many had relocated for the chance to vote.

KANO, Nigeria (AP) — The Latest on Nigeria's election (all times local):

2:50 a.m.

Nigeria's electoral commission says the presidential election is delayed until Feb. 23 over unspecified "challenges" amid reports that voting materials have not been delivered to all parts of the country.

ABUJA, Nigeria (AP) — Nigerian President Muhammadu Buhari expressed joy Sunday night at meeting with the 82 Chibok schoolgirls newly freed from Boko Haram extremists — then jolted the country by announcing he was leaving for London immediately for medical checkups as fears for his health continue.

"We've always made it clear that we will do everything in our power to ensure the freedom & safe return of our daughters" and all captives of Boko Haram, Buhari said on his Twitter account.