• Cuba has stopped selling jet fuel to international airlines.
• The move is due to a fuel shortage triggered by US pressure.
• Airlines must now arrive with enough fuel for round-trip operations or seek alternative refueling stops.
• The shortage affects all of Cuba's international airports.

This development may indicate a significant escalation of economic pressure on Cuba, which could disrupt commercial air service and deepen the country's economic crisis. The move suggests that US policy may be having a direct impact on the island's energy supply, which could have far-reaching consequences for the aviation industry and Cuba's economy.