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.

The grid collapse follows a string of nationwide blackouts late last year that plunged Cuba's frail power generating system into near-total disarray, stressed by fuel shortages, natural disaster and economic crisis.