A 44-year-old man who was carrying a knife has been arrested by police after he tried to enter Buckingham Palace, Scotland Yard has said.
It said the man tried to enter via the palace’s north centre gate but was apprehended immediately.
He was found to be carrying a knife and was arrested on suspicion of trespassing on a protected site and possessing an offensive weapon.
He was taken to a London police station where he remains in custody.
Buckingham Palace said the Queen was not at home at the time.