Millions without electricity as Cuba's power grid collapses

Millions in Cuba have been left without power after the national electricity grid collapsed on Monday, the country's power operator says.

Much of the island including the capital, Havana, was plunged into darkness, with streets only illuminated by headlamps and battery-powered lights on Monday.

UNE, Cuba's grid operator, said early on Tuesday morning that it was gradually restoring electricity to provinces and cities around the country.