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.

Cuba's national electrical grid has collapsed, the country's Energy and Mines ministry said, after a substation failed. Blackouts spread across a large swath of western Cuba, including the capital, Havana on Friday.

Cuba's national electrical grid collapsed late on Friday, the country's Energy and Mines ministry said, leading to widespread blackouts in the capital Havana and across the Caribbean island nation. Energy ministry officials said an electrical substation in Havana failed around 8:15 p.