A residential building crumbled on Saturday night in the Centro Habana district of the Cuban capital, as the city was engulfed in darkness due to a

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.

The collapse plunged the island nation of more than 11 million people into total darkness. It's the latest in a series of failures in the country's creaking, soviet-era infrastructure.

Cuba's capital Havana plunged into darkness for a second night on Saturday as efforts to restore power proceeded in fits and starts, with setbacks slowing progress and leaving several million still without electricity across the island.