Some probationary employees have been called to meet at a location away from the agency’s Langley, Virginia, headquarters and to surrender their security credentials, sources told the New York Times. The layoffs are part of a wider Department of Government Efficiency-led effort to shrink the federal workforce.

A CIA spokesperson confirmed to the outlet that some officers hired in the last two years have been laid off.

It’s not immediately clear how many spies have been terminated, but the spokesperson said not all probationary employees would be fired. The Independent has reached out to the agency for more information.