The incident happened after the chief host and Minister of the Federal Capital Terrorism (FCT), Mohammed Bello, and the China Ambassador, Zhou Pingjian, had just ended their speeches which went on smoothly.
But immediately the president was invited to the podium for his address, the power cut occurred throwing the temporary tent venue of the occasion into huge murmuring.
Some of the guests suggested that there may have been an attempt to sabotage the event.
The light was restored after about five minutes just before the president ended his speech.
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