Cuba's efforts to restore power to the island were derailed for a third time late on Saturday, Cuban authorities said shortly before midnight, leaving millions in the dark and raising fresh questions over the viability of the government's bid to reestablish electrical service.

Cuba’s electrical grid went offline after one of the island’s major power plant failed, the energy ministry said.

Cuba’s government says some electricity has been restored on the island after one of the country’s major power plants failed and left millions without electricity in an outage that started two days ea

Even in a country that is used to outages amid a deepening economic crisis, Friday’s supply collapse was unprecedented in modern times.