After meeting Secretary of State Marco Rubio, El Salvador's president has offered to house U.S. deportees and even American inmates in his country's "mega-prison."

El Salvador has agreed to house violent US criminals and receive deportees of any nationality, US Secretary of State Marco Rubio announced Monday, in an unprecedented – and legally problematic deal – that has alarmed critics and rights groups.

U.S. Secretary of State Marco Rubio said on Monday that El Salvador has offered to accept deportees of any nationality from the U.S., including incarcerated American citizens that would be held in the country’s maximum-security prison.