A federal judge has warned the Trump administration -- amid reports it plans to deport migrants to Libya -- that doing so would violate court orders prohibiting the government from shipping deportees to a third country.

The Trump administration is moving forward with plans to transport a group of undocumented immigrants to Libya on a US military plane, an administration official told CNN.

A U.S. judge said any effort by the Trump administration to deport migrants to Libya would clearly violate a prior court order barring officials from swiftly deporting migrants to countries other than their own without first weighing whether they risk persecution or torture if sent there.