Washington warns of penalties against countries supplying oil to Cuba amid rising tensions.
US President Donald Trump said countries selling oil to Cuba could face tariffs and other punitive measures.
The US administration described oil supplies to Cuba as supporting an “illegitimate regime,” escalating economic pressure.
Cuban officials rejected the threat, calling it an act of economic aggression and warning of severe humanitarian consequences.
The move could deepen US–Cuba tensions and complicate relations with Latin American and energy-exporting nations.
Cuban state media and allies condemned the threat, while international observers warned of regional instability.
Energy suppliers and regional governments weigh their options as diplomatic fallout and economic risks loom.