The Trump administration fired five judges from federal immigration courts in Texas, according to a union representing them, raising concerns that existing case backlogs will worsen and the administration will expand its reliance on fast-track deportations that avoid courts altogether.

The judges’ union estimated that as many as 10,000 hearings will not happen this year because of the lost work. Kerry Doyle sat in an immigration courtroom observing a fellow judge finish a hearing in an asylum case late on a recent Friday afternoon when she received an email with an attachment titled “terminated.

Three federal immigration judges in New Orleans were terminated from their jobs last week, according to two sources with knowledge of the situation.

The union representing immigration court judges across the country reports that 15 judge and judge candidates have been “fired,” including one from the Houston area.