Cuba has once again suffered a failure of the National Electric System (SEN), leaving the entire country without electricity. The authorities of the island nation reported this. It is already the third such accident in less than two weeks amid mounting pressure from the U.S. oil embargo on Cuba’s energy system.

Since January, when U.S. President Donald Trump threatened to impose tariffs on any country that supplies or sells oil to the island, fuel has become scarce across Cuba, further worsening the ongoing financial and economic crisis, Euronews reports.

Public transportation has largely come to a halt, and the authorities have canceled tens of thousands of operations in hospitals.

Cuba meets only about 40% of its fuel needs, and there is still no solution in sight to the problem of import supplies.

Last week, two nationwide blackouts — on Monday and Friday — left more than 9 million Cubans without power; these add to two more outages in March and several regional incidents.

The outages are seriously affecting people’s lives and, combined with the energy embargo, have led to transport restrictions, shorter working hours, and flight cancellations, as well as having severe consequences for the healthcare system.

Because of the power interruptions, basic vital functions are suffering, including cooking, water supply, internet access, and telephone service.