Over 200 migrants who were sent to El Salvador's CECOT mega-prison under accusations that they were members of a violent criminal gang are the responsibility of the United States, the government of El Salvador told a United Nations working group.

In response to UN inquiries, Salvadoran authorities denied past US claims and stated that they have only facilitated the use of their infrastructure

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