Security has been stepped up in Nigeria ahead of the presidential elections.
Originally scheduled for February 14, the vote was postponed to March 28 due to the ongoing threat of violence from hardline militant group Boko Haram.
With this in mind, President Goodluck Johnathan and opposition leader Muhammadu Buhari have signed a second accord pledging to hold peaceful polls.
In the latest pact, the pair agree not to incite religious or ethnic tensions and call on all Nigerian citizens to refrain from violence.
