The Trump administration and the president of El Salvador said Monday that they'd struck a deal allowing the U.S. to ship both detained migrants and imprisoned citizens to the tiny Central American nation,

Salvadoran President Nayib Bukele offered to let Trump move immigrants who are imprisoned in the U.S. to his notorious detention centers in El Salvador.

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.