A new federal court filing says Kilmar Abrego Garcia experienced "severe beatings" and "psychological torture" in a supermax prison in El Salvador.

In a rare account of the notorious prison in El Salvador where the Trump administration deported 261 Venezuelan and Salvadoran migrants in March, Kilmar Abrego García’s lawyers said in a court filing Wednesday that he and the others were severely beaten and forced to kneel for nine straight hours upon their arrival.

Abrego Garcia said detainees at CECOT were subjected to "bright lights that remained on 24 hours a day, and minimal access to sanitation,” among other abuses.