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.
Trump extends deadline for striking Iran's energy plants to April 7
US President Donald Trump said he would again extend a deadline for Iran to reopen the Strait of Hormuz or face the destruction of its energy plants, after Tehran earlier rejected a 15-point US proposal to end the fighting.
No injuries reported as Kuwait Shuwaikh Port comes under drone attack
Kuwait Ports Authority (KPA) has announced on Friday that the Shuwaikh Port came under an overnight hostile drone attack, with no casualties reported.
IRGC-linked cells targeting Bahrain referred to Criminal Court
The Advocate General and Head of the Terrorist Crimes Prosecution in Bahrain announced Thursday that 14 defendants across four cases have been referred to the Criminal Court.
Trump says Iran's 'present' to US was allowing 10 oil tankers through Hormuz
US President Donald Trump said on Thursday that Iran was letting 10 oil tankers transit the Strait of Hormuz as an apparent goodwill gesture in negotiations.
EU agrees to fine online platforms importing unsafe products
The European Union has agreed on Thursday to an overhaul of its customs system, including a crackdown on mainly Chinese e-commerce platforms that face potential fines if they sell illegal or unsafe products into the bloc.
