A shakeup of the top brass at the U.S. Marshals Service’s Colorado office saw four of the top supervisors in the office being “immediately reassigned.”

Lynzey Donahue, a spokeswoman for the Marshals Service, confirmed the moves – which include transferring acting U.S. Marshal Kenneth Deal, a longtime fixture in the Denver office, to the agency’s Washington D.C. headquarters.

Deal previously served as the office’s chief deputy.

According to Donahue, acting Chief Rodney Robinson and acting Assistant Chief Steven Wallish also were transferred to Washington, and Warrant Supervisor Charlie Ahmad was moved to the Marshals Service’s Atlanta office.

Donahue would not provide more information about the shake-up.

The U.S. Marshals Services is the country’s oldest federal law enforcement agency. Among its duties are protecting federal judges, arresting federal fugitives, housing and transporting federal prisons and disposing of assets seized from criminals.

The service employs more than 3,700 deputy U.S. marshals and criminal investigators.