Cuba’s national electrical system collapsed early on Wednesday morning after the country’s largest power plant failed, the government said, the latest of several such failures as the island’s grid falls into disarray amid fuel shortages, natural disaster and economic crisis. The country’s energy and mines ministry said the Antonio Guiteras power plant in Matanzas, the island’s top electricity producer, had shut down at about 2am, prompting the grid collapse. Cuba’s oil-fired power plants, already obsolete and struggling to keep the lights on, reached a full crisis this year as oil imports from Venezuela, Russia and Mexico dwindled, contributing to multiple