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 Abrego Garcia says he suffered severe beatings, severe sleep deprivation and psychological torture in the notorious El Salvador prison the Trump administration deported him to in March, according to court documents filed Wednesday.