The Trump administration says 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 third countries despite criticism over lack of transparency and human rights protections.

Seventeen alleged Tren de Aragua and MS-13 gang members deported from the US were flown in shackles to an El Salvadoran tarmac Sunday night, where they were met by heavily armed Salvadoran troops.

The U.N. human rights commission's working group has now said it will appeal to El Salvador to consider the recent deportation and imprisonment of Venezuelans “alleged enforced or involuntary disappearances” cases.