Cuba's power-grid operator said it had restored electricity to most of the capital Havana on Monday even as Tropical Storm Oscar lashed the island's eastern end, downing trees and power lines.

Seventy percent of Cuba's population now has power, four days after a nationwide blackout triggered by the collapse of the island's largest power plant, and as the country recovers from Hurricane Oscar,

Electricity outages have paralyzed an already-crippled economy, leading to shortages of everything from cash to running water.