All three of the plants in which Iran is known to have produced enriched uranium, which can be used as fuel for power plants and nuclear bombs depending on its purity.

"It is not fine, nor is it legal," wrote US District Judge Brian Murphy, who ruled Trump's deportation policy unlawful.

Maduro and his wife, Cilia Flores, both pleaded not guilty on January 5 to drug trafficking charges that could land them in a US prison for decades. They are jailed in New York awaiting trial.