A majority of the justices concluded that the Venezuelan migrants had brought their cases in the wrong court but that they were entitled to an opportunity to challenge their removal.

The Supreme Court ruled on Monday night that the Trump administration could continue to deport Venezuelan migrants using a wartime powers act for now, overturning a lower court that had put a temporary stop to the deportations.

The decision marks a victory for the Trump administration, although the ruling did not address the constitutionality of using the Alien Enemies Act to send the migrants to a prison in El Salvador. The justices instead issued a narrow procedural ruling, saying that the migrants’ lawyers had filed their lawsuit in the wrong court.

The justices said it should have been filed in Texas, where the Venezuelans are being held, rather than a court in Washington.