Anthony Guglielmi, chief of communications for the U.S. Secret Service, called the incident a "medical matter," adding that the agency wouldn’t be commenting further.
"At approximately 9 a.m. April 22, a U.S. Secret Service special agent supporting the Vice President’s departure from Joint Base Andrews began displaying behavior their colleagues found distressing," Guglielmi said in a statement shared with Fox News Digital.
He added, "The agent was removed from their assignment while medical personnel were summoned. The Vice President was at the Naval Observatory when this incident occurred and there was no impact on her departure from Joint Base Andrews.
"The U.S. Secret Service takes the safety and health of our employees very seriously. As this was a medical matter, we will not disclose any further details."
The agent, who had been acting "erratically," began punching the special agent in charge after getting on top of him, Real Clear Politics reported.
The agent, who was handcuffed after the incident and treated by medical staff, had previously been a subject of concern by staff, the outlet reported.