Topic: Muhammadu Buhari

Muhammadu Buhari, the former president of Nigeria who led the country as both a military ruler after a coup and later as the elected president, has died at the age of 82, his family said.

Bola Ahmed Tinubu was sworn into office as Nigeria's 16th president on Monday, vowing to tackle persistent problems such as endemic corruption and promising to revamp the economy.

Nigerian election officials declared Bola Ahmed Tinubu, 70, the winner of Saturday's presidential election, keeping the country's ruling All Progressive Congress Party in power.

Turnout was high and some violence was reported as Nigerians went to the polls on Saturday to elect a new president in Africa's most populous democracy.

Democracy is on the ballot in a number of nations, while common themes -- such as the handling of inflation and corruption -- may determine how incumbent governments and presidents fare as the ballot box.

The United States has repatriated more than $20.6 million in assets linked to former Nigerian dictator General Sani Abacha to the government of Nigeria.

A suspected Islamist attack on a prison in Nigeria has freed hundreds of inmates, including militants, government officials said.

Nigeria lifted its ban on Twitter Thursday, restoring access to the social media platform for millions of users across West Africa's biggest democracy.

The Nigerian government on Friday "suspended, indefinitely" Twitter's operations in the country after the U.S.-based social media company deleted a tweet by President Muhammadu Buhari.

Three students abducted from Greenfield University in Nigeria have been killed, a local official said.