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.

El Salvador President Nayib Bukele has cast aside allegations that Kilmar Abrego Garcia was beaten and subject to psychological torture in a Salvadoran prison.

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.