The US National Security Adviser John Bolton says the Trump administration is trying to cut Venezuelan President Nicolás Maduro’s revenue streams.
The comments come one day after Mr Maduro cut diplomatic ties with the US.
He was angry after the US recognised an opposition figure, Juan Guaidó, as interim president.
Mr Bolton told reporters outside the White House the issue was “complicated” but they are working on a plan to channel funds to Mr Guaidó instead.
Figures from the Trump administration are continuing to mount pressure on Mr Maduro as the international community remains divided in its support of him.
Russia has condemned foreign powers for backing Mr Guaidó, saying the move violates international law and is a “direct path to bloodshed”.
