Cuba's power-grid operator said it had restored electricity to parts of Havana on Monday following multiple grid collapses over the past four days, while Tropical Storm Oscar lashed the island's eastern end.

HAVANA (Reuters) - Cuba's power-grid operator said it had restored electricity to parts of the capital Havana on Monday following a fourth major grid failure in 48 hours, while Tropical Storm Oscar lashed the island's eastern end. Strong winds and heavy rain uprooted trees and scattered downed power lines in places, complicating recovery efforts.

A massive outage left millions of Cubans without power and prompted the government Friday to implement emergency measures to slash demand, including suspending classes, shutting down some state-owned workplaces and canceling non-essential services.