Millions of people in Cuba are without power after a failure of the nation’s electric grid left the island in the dark.

Cuba’s power grid collapsed Friday night, triggering a nationwide power outage and plunging its more than 10 million people into darkness.

Electricity service in Cuba is gradually being restored more than 36 hours after a substation failure left the entire island in the dark.

Cuba suffered a massive power outage Friday night affecting Havana and the country's provinces that left millions in the dark.

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's capital Havana plunged into darkness for a second night on Saturday as efforts to restore power proceeded in fits and starts, with setbacks slowing progress and leaving several million still without electricity across the island.

Millions of people in Cuba remained without power Saturday after a failure of the nation's electric grid left the island in the dark the previous night. The blackout is the fourth in the last six months as a severe economic crisis plagues the Caribbean country.

CUBAN authorities worked around the clock to restore pockets of electricity back to the country today. This comes after millions of people were left without power on Saturday after a failure of the nation’s electric grid left the island in the dark the previous night.

Havana’s streets plunged into darkness once again as a general blackout hit Cuba. Writing on the social network X, Cuban PM Manuel Marrero Cruz said the government was "working tirelessly" to restore power.