At least a dozen people have been killed in fresh violence in Burundi this weekend. Opposition activists are denouncing a crackdown by authorities. Also, Nigeria confirms its former oil minister was arrested in the UK on charges of bribery and money laundering. Nigeria's new president has vowed to weed out massive fraud from the country's multi-billion dollar oil industry. And how do you teach classrooms of students hundreds of miles apart? We take a look at Ghana's virtual teachers.

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