One of the West African nation's electricity distribution companies - Enugu Electricity Distribution Company - confirmed a "total system collapse", that has caused blackout's across all of Nigeria's 36 states and the capital city, Abuja.

Some towns, including Osogbo have had power restored, but it is not clear when the entire nation will have electricity.

The grid has collapsed multiple times.

The Kaduna Electricity Distribution Company, which supplies power to parts of northern Nigeria, said power would be restored as soon as the national grid has power again.

Data from the Transmission Company of Nigeria showed that power generation fell to zero in the early hours, and by 10.30am (GMT) had risen to 273 megawatts (MW), well below the daily average of 4,100MW.

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Power failures are common in the country, which battles with poor energy infrastructure.

Although rich in oil, the country - which has a population of more than 210 million people - distributes far less than the 30,000MW a day authorities say it needs.

President Bola Tinubu has promised to improve supply by allowing state governments to build their own power plants in a bid to help boost economic growth.