Nigeria Votes

Nigerian incumbent President Goodluck Jonathan cast his ballot in Otuoke, Nigeria, April 16, 2011. (AP image)

Former military ruler and presidential aspirant Muhammadu Buhari, Centre, arrives at a polling place in Daura, Nigeria, Saturday, April 16, 2011. (AP image)

An electoral official check a voters name at a polling place in Daura, Nigeria, Saturday, April 16, 2011. (AP image)

A man cast his vote during the National Assembly election at a polling station in Ibadan, Nigeria, April 9, 2011. (AP image)

People wait to be registered at a polling station at Oyeleye in Ibadan, Nigeria, Saturday, April 9, 2011. (AP image)

An Unidentified man reads a newspaper with the headline 'National Shame' after the election was postponed Saturday by Election Commission Chairman Attahiru Jega, Lagos, Nigeria, April 3, 2011. (AP image)

Electoral officers unload election materials from a vehicle at the Independent National Electoral Commission building in northern city of Kano, Nigeria, April 3, 2011 (Reuters image)

Voters queue to register during parliamentary elections in Kano, northern Nigeria, April 1, 2011 (Reuters image)

Motorcyclists wait at a traffic stop in front of election campaign posters in Yaba, Lagos, Nigeria, March 30, 2011. (AP Image)

Members of the Party Loyalists drive their motocycles outside the entrance of a park in front of posters featuring Nigeria's opposition leader Mohammadu Buhari a (R) and Nigeria's President Goodluck Jonathan and his Vice President Namadi Sambo (L) in K

Nigerian President Goodluck Jonathan waves to the crowd on arrival at a campaign rally in Kano, northern Nigeria, March 16, 2011. (Reuters Image)

Muhammadu Buhari, former military ruler and Presidential candidate for the Congress for Progressive Change (CPC), speaks during the flag-off of the presidential campaign at Mapo square, Ibadan, south-west Nigeria, March 14, 2011. (Reuters Image)

Nigeria's electoral chief and academic Attahiru Jega attends a meeting with staff from the Independent National Electoral Commission in Abuja, March 17, 2011. (AP Image)

European Union elections observers talk after their arrival ahead of polls in Abuja, March 19, 2011. (Reuters Image)

An election banner hangs on a pedestrian bridge in Mushin Neighbourhood in Nigeria's commercial capital Lagos, March 23, 2011. (Reuters Image)

A campaign van for Lagos state governor drives past a motorcyclist in Lagos, Nigeria, March 9, 2011. (Reuters Image)