article_snippet: After Jonathan's victory in 2011, amid accusations of vote-rigging, violent riots broke out in North.
article_snippet: Armed protesters took to the streets chanting Muhammadu Buhari's name, and more than 800 people were killed in the post-election violence.
article_snippet: But violent protests broke out a day before the final results were announced.
article_snippet: Protesters fired gunshots and torched a local electoral office in Nigeria's oil-rich Rivers state as Protesters marched to protest the elections, amid claims of vote-rigging and voter intimidation.
article_snippet: After the protests in Rivers, his party demanded the elections be canceled.
article_snippet: But Nigeria's electoral commission decided the final results would stand, saying the final results "did not believe the allegations were substantial enough to require the cancellation/rescheduling" of the Rivers poll.