U.S. immigration courts will stop hearing cases until further notice for asylum-seekers who applied at the southern border and were returned to Mexico to await a hearing before a judge, the Trump administration announced late Monday.

“Due to circumstances resulting from COVID-19, all Migrant Protection Protocol (MPP) master calendar and merit hearings presently scheduled through April 22 will be rescheduled. Neither the MPP program nor any hearings will be cancelled,” the Department of Homeland Security and the Justice Department’s Executive Office for Immigration Review said in a joint statement.