Cuba suffered a general blackout on Friday caused by a crash of its national electricity grid, officials said, the fourth major power outage on the cash-strapped communist island in five months. “At around 8:15pm tonight,

Cuba's eight thermal power plants, nearly all of which came online in the 1980s or 1990s, suffer routine failures.

Cuba remained largely without power on Saturday morning after the island´s grid collapsed the night before, knocking out electricity for 10 million people and raising fresh questions about the viability of its antiquated generating system.