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

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

Kilmar Abrego Garcia, who was mistakenly deported from the U.S. in March, says he was brutally beaten and subjected to psychological torture while held in one of El Salvador's most notorious prisons.