A federal judge in San Francisco on Thursday found that the mass firings of probationary employees were likely unlawful, granting some temporary relief to a coalition of labor unions and organizations that has sued to stop the Trump administration’s massive trimming of the federal workforce.

U.S. District Judge William Alsup instructed the Office of Personnel Management to inform certain federal agencies it had no authority to order the firings of probationary employees. The ruling is

A California federal judge said that the U.S. Office of Personnel Management lacked the power to order federal agencies to fire any workers, including probationary employees who typically have less than a year of experience.