Nigeria's ex-president Buhari, twice leader of Africa's most populous nation, dies aged 82

Nigeria’s former president, Muhammadu Buhari, who led Nigeria twice as a military head of state and a democratic president, has died aged 82, his press secretary said Sunday. Buhari died in London on Sunday afternoon, where he was receiving medical treatment in recent weeks. When he was elected in 2015, on his fourth attempt, he became the first opposition candidate to win a presidential election.