Muhammadu Buhari re-elected Nigerian president: results

Muhammadu Buhari was re-elected Nigeria's president, official results showed Tuesday, after a delayed poll that angered voters and led to claims of rigging and collusion.

With just one state left to declare, Buhari, 76, had a lead of more than four million votes over former vice-president Atiku Abubakar, making it impossible for his closest rival to win.