Borno state in northeast Nigeria, worst-hit by six years of Boko Haram violence, voted overwhelmingly in favour of opposition candidate Muhammadu Buhari, results showed on Tuesday.
The former military ruler, who has accused President Goodluck Jonathan of failing to provide leadership in the insurgency, won 473,543 ballots in the state, or 94 percent of the valid votes cast.
Jonathan, who had been hoping for a political bounce from recent military successes against the Islamists, could only muster 25,640. The final result put Buhari ahead of Jonathan by 2.57 million votes.