President Nayib Bukele has offered to jail deported criminals from the United States. His prisons have earned him a reputation as being tough on crime, but have raised alarms over rights abuses.

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.

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.

El Salvador has offered to take in people deported from the U.S. for entering the country illegally as well as the country’s violent criminals — even if they’re American citizens

It is unclear whether the Trump administration plans to send incarcerated U.S. citizens to El Salvador. Secretary of State Marco Rubio said the United States is “grateful” for the offer.

Secretary of State Marco Rubio said he is reviewing an offer from the president of El Salvador to deport not just undocumented immigrants but also American prisoners to a mega-prison in the South American country.

U.S. Secretary of State Marco Rubio, after a meeting Monday with El Salvador President Nayib Bukele, proclaimed it the most “unprecedented, extraordinary” offer the country has yet received during the ongoing wave of global migration.