Cuba suffers third nationwide blackout in two weeks amid fuel crisis.

Cuba suffered another nationwide blackout on Tuesday, leaving the entire country without electricity, officials said. It was the third such incident in two weeks as the country's fuel shortage has continued to deepen since January.

President Donald Trump threatened tariffs on any country that sells or supplies oil to the island, further worsening Cuba's economic and financial crisis. Cuba produces only 40% of the fuel it needs, and there is currently no clear solution for securing additional fuel imports.

Public transportation has been largely suspended, and officials have canceled tens of thousands of surgeries. The repeated blackouts, combined with the energy embargo, have led to transportation disruptions, reduced working hours, flight cancellations and serious public health consequences.

Last week, two nationwide blackouts — on Monday and Friday — left more than 9 million Cubans without electricity, adding to two other nationwide outages in March as well as several regional power failures. Washington implemented the energy embargo in January and also threatened tariffs on countries supplying fuel to Cuba.

By Tuesday afternoon, electricity had been restored in parts of Havana, according, while authorities said around 4% of the capital had regained power. The provinces of Guantánamo and Cienfuegos reported that electricity had been restored to hospitals, while Matanzas confirmed that power had returned to the city's historic center.