Cuba is facing a severe energy crisis as millions are plunged into darkness due to a massive blackout affecting two-thirds of the country, including Havana. The outage has been exacerbated by ongoing U.S. sanctions, which have led to a significant reduction in fuel supplies. Reports indicate that the failure of the Guiteras thermoelectric plant contributed to the blackout, which has left the nation without power, radio, or television services. As the situation deteriorates, Cuba has initiated protocols to restore its electrical system, but less than 6% of electricity service has been restored in Havana. The crisis has prompted the U.S. Embassy to issue a security alert, while more diplomatic tensions arise as Ecuador expels Havana’s ambassador and staff.