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.
WHO chief urges safe burials in visit to heart of Ebola outbreak
The World Health Organisation (WHO) chief has travelled on Saturday to the Congolese province hardest hit by an Ebola outbreak, urging residents to seek treatment and practice safe burials as officials scramble to contain the fatal disease.
Rescuers pull four from flooded cave in Laos
Rescuers pulled four people from a flooded cave in Laos on Saturday, Thai volunteers said, hours after another man was brought out late on Friday.
Brazil investigates suspected Ebola case in Sao Paulo
Health authorities in Brazil's Sao Paulo state are investigating a suspected case of Ebola reported on Saturday in the state capital, officials said.
Zambia steps up Ebola screening as neighbouring Congo sees cases rise
Zambia has investigated and cleared two suspected cases of Ebola as it steps up screening and surveillance for the deadly viral disease following an outbreak in neighbouring Democratic Republic of Congo.
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