Nigeria's Election commission has declared victory for former military ruler, Muhammadu Buhari, over incumbent Goodluck Jonathan.
72-year-old former military ruler Muhammadu Buhari has become the first Nigerian to defeat a sitting president through the ballot box, putting him in charge of Africa's most populous nation and its biggest economy.
Buhari was declared the winner after he gained 2.7 million more votes than his rival, incumbent President Goodluck Jonathan.
Buhari managed to secure more than 25 percent of votes in 24 states, ruling out a run-off vote.
To win the election, Buhari had needed more than 50 percent of the total votes nationally – and take at least 25 percent of the vote in two thirds of the states.
The All Progressives Congress (APC) party said Buhari received a phone call from incumbent President Goodluck Jonathan during which he immediately conceded defeat and congratulated him on his victory.
"President Jonathan called General Muhammadu Buhari, the winner of the elections, to congratulate him," Lai Mohammed, spokesman for the APC, said.
"There had always been this fear that he might not want to concede, but he will remain a hero for this move. The tension will go down dramatically,
"Anyone who tries to foment trouble on the account that they have lost the election will be doing so purely on his own," he added.
Victory for Buhari marks the first time in Nigeria's history that an opposition party has democratically taken control of the country from the ruling party.
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Al Jazeera's reports that there was shock that Jonathan had congratulated Buhari and that violence had not followed the announcement. In the 2011 election, more than 800 people were killed in protests after Buhari was defeated by Jonathan.
Buhari Supporters jubilating as Buhari's declared winner
"The announcement has been greeted with celebrations across the country," Mutasa said. "Many people are excited and hope this will mark a new beginning and move the country forward."
Hundreds of Buhari's supporters gathered to celebrate outside his home in Abuja, with some brandishing brooms to symbolise his promise to clean up corruption.
His supporters told Al Jazeera that the vote was "free, fair and without irregularities" as the country ushered in a new era.
"We don't have roads, electricty and the youth are looking for jobs," one supporter said. "The people wanted change and change has now come."
Jonathan, whose five years in office have been plagued by corruption scandals and an insurgency by the Boko Haram group, was trailing by around 500,000 votes before votes in pro-opposition areas were counted.
There was a brief protest by Jonathan's Peoples Democratic Party (PDP) before the counting had resumed on Tuesday.
Former Niger Delta minister Godsday Orubebe accused elections chief Attahiru Jega of being "partial" and "selective".]]>
Orubebe claimed Jega had refused to investigate PDP complaints about big wins by Buhari in northern states but had launched a probe into claims by the APC of irregularities in Rivers.
Jega said later: "I don't believe that the allegations are substantial enough to require the cancellation or rescheduling of the elections in Rivers state. We will take the results."
International observers gave broadly positive reactions to the conduct of the vote, despite late delivery of election materials and technical glitches with new voter authentication devices.
Nigeria's Transition Monitoring Group, which had observers across the country, said: "These issues did not systematically disadvantage any candidate or party."