Immigration attorneys are scrambling to seek emergency relief from a federal court in Texas after learning that Venezuelan migrants detained there received notices that they are subject to President Donald Trump’s Alien Enemies Act proclamation issued last month.

Two migrants say in a lawsuit brought by the American Civil Liberties Union that they and others were transferred in the last few days to Bluebonnet Detention Center in Anson. The ACLU is hoping a judge in the case will certify the lawsuit as a class action so that any orders the judge gives can cover more migrants than just its two clients.