President Joe Biden's dog Major has 'nipped' an individual on White House grounds, the second dog bite incident in a month.
The incident, the second involving the younger of the US President's two German Shepherds, happened on Monday.
Earlier this month, Major bit a security staff member, according to media reports. That incident caused a "minor injury," a White House spokeswoman said at the time.
Speaking of the latest incident a spokesperson said that the animal, a rescue dog, was still getting used to the President's new digs.
Michael LaRosa, spokesperson for first lady Jill Biden said: "Major is still adjusting to his new surroundings and he nipped someone while on a walk.
"Out of an abundance of caution, the individual was seen by (the White House medical unit) and then returned to work without injury."
CNN reported that a National Park Service staffer was bitten on the South Lawn and stopped work to receive treatment.
The National Park Service had not responded to CNN's request for comment.
Following the first biting incident, the dog had a round of training in Biden's home state of Delaware to help him get used to life at the 18-acre complex in Washington.

The president adopted Major from the Delaware Humane Society in 2018 after serving as vice president under former President Barack Obama.
Biden's other house pet, Champ, is an old Washington hand, having joined the family in 2008 when Biden was elected vice president.
For the most part, Major is a "sweet dog," Biden said earlier this month. Major is three years old and the older dog, Champ, is said to be 13.
The first family is also expected to get a cat.