Former Nigerian President Muhammadu Buhari, who led the country twice as a military head of state and a democratic president, has died aged 82.

LAGOS - Nigeria's former President Muhammadu Buhari, who led Africa's most populous country from 2015-23 and was the first Nigerian president to oust an incumbent through the ballot box, died in London on Sunday, a presidential spokesperson said.

When Muhammadu Buhari was elected in 2015, on his fourth attempt, he became the first opposition candidate to win a presidential election.