Nigerian President Muhammadu Buhari has been re-elected for a second four-year term.
Election officials said the former military dictator had defeated his main rival, former Vice President Atiku Abubakar, with a margin of just under four million votes.
Buhari secured 15.1 million votes, while Abubakar of the People's Democratic Party (PDP) received 11.2 million, with voter turnout at a meagre 35.6 per cent.
The opposition has rejected the results, claiming voter fraud and irregularities.

US Epstein files release highlights Clinton, makes scant reference to Trump
US hits ISIS in Syria with large retaliatory strikes, officials say
Pakistan court hands Imran Khan, wife 17-year jail terms in another graft case
Seven elephants killed in India train accident
