People with knowledge of the incident told CNN that Major bit a National Park Service employee on the South Lawn on Monday. The worker was evaluated by the White House medical team.
"Out of an abundance of caution, the individual was seen by [the White House Medical Unit] and then returned to work without injury."
The incident comes about a week after Major and Champ, also a German shepherd, returned to the White House from the Biden home in Delaware. The two dogs were sent home after Major snapped at someone earlier in March.
The 3-year-old rescue dog was "surprised by an unfamiliar person and reacted in a way that resulted in a minor injury to the individual," White House press secretary Jen Psaki said at the time.
"The dogs will come and go, and it will not be uncommon for them to head back to Delaware on occasion, as the president and first lady often do as well," she added.
LaRosa said Major received some extra training after that initial incident.