A court says the Trump administration can’t deport people to Libya without giving them proper notice, presenting yet another hurdle for the plans.

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.

Deporting migrants to Libya without a chance to challenge the removals would violate a court order, a federal judge said Wednesday, after immigration attorneys reported that authorities told people they would be sent to the country with a history of human rights violations.