Nkurunziza won 69 percent of the vote while his closest rival, Agathon Rwasa, got 19 percent, said electoral chief Pierre-Claver Ndayicariye.
Nkurunziza, 51, was expected to win because he did not face a strong challenge in Tuesday's polls after some opposition groups boycotted the election. Rwasa, the leading opposition candidate, said his campaign had been hindered by officials.
