The Trump administration is preparing to send more immigrants with criminal records to El Salvador’s notorious mega prison on the heels of a Supreme Court order allowing the use for now of a sweeping wartime authority for deportations,

WASHINGTON (AP) — The Trump administration said Monday that it has deported 17 more “violent criminals” from the Tren de Aragua and MS-13 gangs to El Salvador, as it doubles down on a policy of removing people from the U.S. to countries other than their own despite criticism over lack of transparency and human rights issues.

A trial judge had ordered the Trump administration to take steps to return the migrant, Kilmar Armando Abrego Garcia, from a notorious prison in El Salvador.

The Trump administration had conceded that Kilmar Abrego Garcia was deported because of an "administrative error", but fought against his return to the US.

The U.S. Supreme Court upheld on Thursday a judge's order requiring President Donald Trump's administration to facilitate the return to the United States of a Salvadoran man who the government has acknowledged was deported in error to El Salvador.

The Supreme Court on Thursday required President Donald Trump’s administration to “facilitate” the return of a Maryland man mistakenly deported to El Salvador but stopped short of requiring the government to return him to the United States.

Maryland resident Kilmar Abrego Garcia was mistakenly deported to El Salvador despite having legal protection from deportation. Lawmakers are demanding his return and criticizing the administration's inaction,

ABC's Matt Rivers takes us to El Salvador, inside the notorious prison that's holding hundreds of deported Venezuelan migrants.