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.

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

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.