Atiku Abubakar, the People’s Democratic Party’s (PDP) presidential candidate, voted in Adamawa State at his polling unit.
President Muhammadu Buhari’s second term ends on May 29. There are four front-runners vying to succeed him.
Bola Tinubu of the All Progressives Congress (APC), Peter Obi of the Labour Party (LP), and Rabiu Kwankwaso of the New Nigerian People’s Party are the other three candidates (NNPP).