Electricity service in Cuba is gradually being restored more than 36 hours after a substation failure left the entire island in the dark

Millions of people in Cuba remain without power after a failure of the nation’s electric grid left the island in the dark.

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