The immigrants were deported under the Alien Enemies Act of 1798, which has been used only three times prior and requires a president to declare the United States is at war.

The president uses the Alien Enemies Act, first passed in 1798, to help speed up the pace for removing alleged Venezuelan gang members.

Trump proclaimed on Saturday that immigrants belonging to the Venezuelan crime gang Tren de Aragua were "conducting irregular warfare" against the US and that he would deport them under the Alien Enemies Act of 1798.