Citizens are going to the polls today after a last-minute postponement earlier this week.
The main challenger to reigning president Muhammadu Buhari is former Vice-President Atiku Abubakar.
It is not known exactly when the final results will be announced.
Experts say a winner could be declared as late as Tuesday.
Nigeria is Africa's most populated country.
Sudan's RSF agrees to US proposal for humanitarian ceasefire
Sudan's paramilitary Rapid Support Forces agreed to a proposal from the United States and Arab powers for a humanitarian ceasefire and is open to talks on a cessation of hostilities, it said on Thursday in a statement.
India top court says Air India crash report does not insinuate anything against pilot
India's top court said on Friday that a preliminary report on an Air India crash that killed 260 people in June does not insinuate anything against the captain, but it will hear a plea from the pilot's father on November 10 for an independent probe.
Belgium's Liege airport temporarily halted again due to drone sighting
Belgium's Liege airport has resumed flights after a temporary halt due to a drone sighting, the country's air traffic control service said on Fridayin the second such incident this week.
Explosion at mosque in Indonesian capital injures dozens, police say
An explosion at a mosque in Indonesia's capital Jakarta during Friday prayers injured dozens of people, police said, without giving any early indication of the cause.
Over 200 flights delayed at Delhi airport after glitch in air traffic system
More than 200 flights were delayed at Delhi airport, one of the world's busiest, after an air traffic control messaging system suffered a technical problem, India's airport authority and a source familiar with the matter said on Friday.
