2015 Nigerian general election north-eastern states. The government closed its land and sea borders from midnight on 25 March until the end of the polling date. The election was extended to 29 March due to delays and technical problems with the biometric card readers. It was the most expensive election ever to be held on the African continent. Nigeria is the continent's most populous country, has its largest economy and is its leading oil producer. Opposition candidate Muhammadu Buhari won the presidential election by more than 2.5 million votes. Incumbent President Goodluck Jonathan conceded defeat on 31 March, before the results from all 36
Goodluck Jonathan Babangida, and to win popular sympathy ahead of the 2011 elections. President Jonathan denied these allegations of terrorism leveled against him. A media statement was issued on 2 May 2012, acknowledging the accusations from Okah. The statement went on to say that: "The Presidency categorically affirms that these allegations are false in their entirety and without any factual foundation." The Presidency also expressed no interest in commenting further for the time being, but planned to "make a full representation on the matter to the court when the trial opens." In January 2013, Okah was found guilty by a South African