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Muhammadu Buhari to be sworn in as Nigeria president Muhammadu Buhari is sworn in as Nigeria president
(about 1 hour later)
The winner of Nigeria's presidential election in March, Muhammadu Buhari, is due to be sworn in as leader of Africa's most populous country. The winner of Nigeria's presidential election in March, Muhammadu Buhari, has been sworn in as leader of Africa's most populous country.
Mr Buhari is the first opposition figure to win a presidential election in Nigeria since independence in 1960.Mr Buhari is the first opposition figure to win a presidential election in Nigeria since independence in 1960.
He takes over from Goodluck Jonathan, who has urged his successor to unite the country in the face of the threat from Boko Haram militants. He has taken over from Goodluck Jonathan, who urged his successor to unite the country in the face of the threat from Boko Haram militants.
Mr Buhari, a former military ruler, says he is a convert to democracy.Mr Buhari, a former military ruler, says he is a convert to democracy.
He defeated Mr Jonathan - who had been in office since 2010 - by 15.4 million votes to 12.9 million.He defeated Mr Jonathan - who had been in office since 2010 - by 15.4 million votes to 12.9 million.
Nigeria handover and other African news updatesNigeria handover and other African news updates
Boko Haram, an Islamic group based in north-eastern Nigeria, has caused havoc through a wave of bombings, assassinations and abductions in recent years. The BBC's Will Ross in the capital, Abuja, says heads of state and senior government officials have come from across the world to witness this truly historic moment for Nigeria.
Besides tackling the militants, Mr Buhari has promised to stamp out corruption. Correspondents say he also faces serious economic problems, with falling oil prices slashing state revenues. In a country with a chequered history when it comes to power changing hands, this is a chance to celebrate deepening democracy, he says.
At the inauguration ceremony at Abuja's Eagle Square - Mr Jonathan handed over the constitution and national flags before Mr Buhari took his oath of office.
"I will discharge my duties to the best of my ability, faithfully and in accordance with the Constitution of the Federal Republic of Nigeria and the law," he said to cheering crowds.
The announcer declared to the audience afterwards: "Change has come to Nigeria."
Among the guests at the ceremony is US Secretary of State John Kerry and African leaders including Zimbabwe's President Robert Mugabe.
Mr Buhari comes into power as Nigeria faces significant economic as well as security challenges with an Islamist insurgency having devastated towns and villages in the north-east.
Besides tackling the Boko Haram militants, Mr Buhari has promised to stamp out corruption.
Muhammadu Buhari in focus:Muhammadu Buhari in focus:
Profile: Muhammadu BuhariProfile: Muhammadu Buhari
Handing over the reins of powerHanding over the reins of power
Buhari's to-do listBuhari's to-do list