The request from U.S. District Judge Stephanie Gallagher comes after the government of El Salvador, in a report by the United Nations submitted in a separate lawsuit, said that the migrants sent by the U.S. to CECOT are under the authority of the United States.

El Salvador has said that the United States has legal jurisdiction over deported migrants being held in the Central American country, court documents show. In mid-March, Trump sent 238 Venezuelans and 23 Salvadorans from the United States to the CECOT prison in El Salvador.

The Trump admin has argued that the men are now outside U.S. legal jurisdiction and no longer protected by constitutional rights.