At the notorious CECOT prison, he was forced to frog-march and to kneel from 9 p.m. to 6 a.m., and he was subjected to beatings and threats, his lawyers said Wednesday.

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.

Kilmar Armando Abrego Garcia was made to kneel overnight, denied bathroom access and confined in an overcrowded cell with bright lights and no windows, his lawyers say.