A 44-year-old man has been arrested by police after he was caught trying to enter Buckingham Palace with a knife!
It's been reported that the man tired to get into the palace today at around 11:30 BST but was stopped immediately.
He was then arrested on suspicion of trespassing on a protected site and possessing an offensive weapon and was taken to a London police station.
No more has been said about the proceedings but Buckingham Palace have said that the Queen wasn't at home at the time of the proceedings.
The police have said that no one was hurt during the incident.