Wedoany.com Report-Oct 21,Cuba's electrical grid collapsed again on Sunday, the fourth such failure in 48 hours, raising fresh doubts about a quick fix on an island already suffering from severe shortages of food, fuel and medicine.

The blackout, after weeks of rolling outages, sparked some small protests around the Caribbean island, where a tropical storm threatened to hamper efforts to restore power.

Cuba's national electrical grid first crashed around midday on Friday after the island's largest power plant shut down, sowing chaos and leaving around 10 million people in the dark. The grid has collapsed three times since, underscoring the precarious state of the country's infrastructure.