Nigeria’s major cities, including Abuja, Lagos and Kano, suffered blackouts on Thursday as the country’s electricity grid collapsed in the tenth such outage to hit the power system this year.

Amnesty International Nigeria says armed men have killed at least 20 people and injured dozens in a mining village in Nigeria’s northwestern Zamfara state.

Abuja: Nigeria's major cities including Abuja, Lagos and Kano suffered blackouts Thursday as the country's electricity grid collapsed in the tenth such outage to hit the power system this year.