Cuba’s power grid collapsed Friday night, triggering a nationwide power outage and plunging its more than 10 million people into darkness. “At around 8:15 p.m. tonight, a failure at the Diezmero substation caused a significant loss of generation in the west of #Cuba and with it the failure of the National Electric System,

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

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.