Cuba has suffered a massive power outage affecting Havana and the country’s provinces that has left millions in the dark.

The electrical grid in Cuba is old and in need of significant modernization. Many of the power plants and transmission lines are outdated and prone to failure, especially under hi

Energy ministry officials said an electrical substation in Havana failed around 8:15 p.m. (0015 GMT), knocking out power to a large swath of western Cuba, including the capital.

Cuba suffered a general blackout on Friday caused by a crash of its national electricity grid, officials said, the fourth major power outage on the cash-strapped communist island in five months.

Cuba's national electrical grid failed late on Friday, according to state-run media, leading to widespread blackouts in the capital Havana and across the country. Officials said they were investigating the causes and magnitude of the grid failure,