Aug. 26 (UPI) — Three Secret Service employees have been put on administrative leave during an investigation into “potential misconduct,” the agency confirmed.

The three staffers are “non-law enforcement personnel,” including Chief of Communications Anthony Guglielmi and two others in the agency’s communications office, CNN, CBS News and The Hill reported. CNN first reported the investigation.

It isn’t clear what the “potential misconduct” was or why they were put on leave.

The employees lost their security clearances and access to work devices, which is common practice during internal investigations.

A Secret Service spokesperson said the investigation is being handled by the agency’s Office of Professional Responsibility.

“The U.S. Secret Service is committed to upholding the highest standards of professionalism and integrity in fulfilling our zero-fail mission of protecting the President and other high-level government officials. Our critical work demands that our workforce maintain an unwavering commitment to duty, honesty, and courage in all aspects of their jobs. We will continue to pursue the level of excellence that is worthy of the mission which has been entrusted to us by the American people,” the spokesperson said.

On Tuesday, the Secret Service said it was “aware” of a video by Iran threatening Barron Trump’s life.

A week ago, the Secret Service launched a probe into a member of Vice President JD Vance’s security detail for allegedly leaking sensitive information.

The agency has faced intense scrutiny over several assassination plots and attempts on President Donald Trump’s life.