Nigeria's ruling party candidate, Bola Tinubu, took an early lead in the race for the presidency, according to initial election results. But the poll remains tight between three of the leading candidates in an election marked by long delays and accusations of fraud by the opposition.
Former Lagos governor Tinubu faced main opposition party PDP's Atiku Abubakar in Saturday's vote, but Labour Party's Peter Obi tested the two others as a third contender for the first time in Nigeria's modern democracy.
