El Salvador has offered to accept undocumented immigrants of any nationality with criminal backgrounds from the United States, an agreement that comes as the Trump administration seeks to ramp up its mass deportation efforts.

U.S. Secretary of State Marco Rubio says El Salvador’s president “has agreed to the most unprecedented, extraordinary, extraordinary migratory agreement anywhere in the world."

Secretary of State Marco Rubio said the offer includes incarcerated American citizens who would be held in the country’s maximum-security prison.