Nigerian President Bola Tinubu
The new president of Africa's largest democracy, Nigeria, was sworn in today at a ceremony in the capital, Abuja.
Bola Tinubu won February's election with a promise to renew hope - but he faces tough economic and security challenges.
Mr. Tinubu, a trained accountant, takes over from two-term President Muhammadu Buhari amid a high inflation rate, record debt levels and increasing cases of kidnap-for-ransom.
The 71-year-old's victory is also being challenged in court by his two closest rivals.
They say the outcome was manipulated.
But the outgoing president, who did not run in the election after eight years in power, said the results were credible and the vote was fair and transparent.
Dignitaries from across the continent attended the swearing-in ceremony.
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