Washington: US President Donald Trump on Sunday threatened military action against Colombia's government, telling reporters that such an operation "sounds good to me."

"Colombia is very sick, too, run by a sick man, who likes making cocaine and selling it to the United States, and he's not going to be doing it very long," Trump told reporters aboard Air Force One, in an apparent reference to Colombia's President Gustavo Petro.

Asked directly whether the US would pursue a military operation against the country, Trump answered, "It sounds good to me."

The comments came after the United States captured Venezuelan President Nicolas Maduro in an audacious raid and whisked him to New York to face drug-trafficking charges.

Trump also said on Sunday that Cuba was "ready to fall" after US forces seized the leader of its ally Venezuela, while playing down the need for any American military action there.

"Cuba is ready to to fall," Trump told reporters on Air Force One, saying it would be hard for Havana to "hold out" without receiving heavily subsidized Venezuelan oil.

"I don't think we need any action. It looks like it's going down."

(With Reuters and AFP inputs)