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Nigeria's 2007 election 'marred by fraud'

27 September 2010 Last updated at 12:51 BST

In 2007, after a week of violence involving at least 200 deaths, Nigeria elected a new president.

The election was won by a candidate from the governing party amid allegations of widespread vote-rigging. Will Ross reports.

Contributors featured in this report: Jibrin Ibrahim and Olusegun Obasanjo

BBC News - Nigeria at 50