The U.S. government has begun firing thousands of people at multiple agencies as Donald Trump and Elon Musk accelerated their purge of America’s federal bureaucracy.

The Department of Veterans Affairs, which provides healthcare for veterans, said it had let go of more than 1,000 employees who were in their probationary period while the U.S. Forest Service is set to fire more than 3,000.

Termination emails have reportedly been sent to workers across the government in the past 48 hours, mostly recently hired employees still on probation, at agencies such as the Department of Education, the Small Business Administration, the Consumer Financial Protection Bureau and the General Services Administration.