Cuba has struggled with blackouts in recent months, including a nationwide one in December. Friday’s power failure was the fourth widespread one in five months. Government officials blame U.S. economic sanctions for the ongoing crisis, while others point to aging infrastructure, fuel shortages and the island’s susceptibility to hurricanes.

Cuba was plunged into darkness on Friday night as a nationwide power outage left more than 10 million people without electricity, marking one of the most severe blackouts the country has faced in recent years,

Cuba has suffered a massive power outage affecting Havana and the country’s provinces that has left millions in the dark.