Washington, June 11 (RHC)-- U.S. private prisons with over 25,000 inmates violate human rights by subjecting prisoners to systematic abuse, according to a report issued on Tuesday.

The Criminal Alien Requirement (CAR) prisons holding people, who violated U.S. immigration laws, subject inmates to "shocking abuse and mistreatment."

"Putting profit before people seems to touch every facet of life at CAR prisons," said the report released by the American Civil Liberties Union. The ACLU report said: "The U.S. Bureau of Prison's reliance on private prisons is unlikely to end any time soon."

The ACLU said the Bureau of Prisons (BOP) spent nearly $600 million in 2013 to cover the expenses of what it calls the "privately operated institutions." However, the bureau said it will take the accusations, it also said it would not comment on the report's details, adding its low-security institutions are overcrowded still it monitors the private detention centers.

Five of the CAR prisons are situated in Texas and eight in other states which are all run by three companies namely Corrections Corporation of America, MTC and the GEO Group. While Corrections Corporation of America has refused to comment on the report, MTC and the GEO Group rejected the report's allegations as baseless, claiming that their facilities are appropriately equipped and accredited.