Cuba is open to having a fluid commercial relationship with U.S. companies" and "also with Cubans residing in the United States and their descendants," Deputy Prime Minister Oscar Pérez-Oliva Fraga said in an interview in Havana.

The Cuban government is planning to allow Cuban nationals who live abroad to invest in the island, a government official told NBC News, as the country faces economic collapse and pressure from the Trump administration.

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A third nationwide blackout this month amid a worsening fuel shortage and an aging grid has left millions facing prolonged outages.