By Kanishka Singh WASHINGTON (Reuters) -Kilmar Abrego Garcia, the migrant returned to the U.S. in early June after being wrongfully deported to his native El Salvador, reported severe mistreatment in a high-security prison in the Latin American nation,

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.

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.