Pockets of Cuba's capital Havana saw the lights flicker back on though vast areas of the city and country continued without electricity on Sunday morning, after a nationwide grid collapse that knocked out power to 10 million people.

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

A residential building crumbled on Saturday night in the Centro Habana district of the Cuban capital, as the city was engulfed in darkness due to a