A young man has been detained after trying to scale a wall into Buckingham Palace.
The suspect, 24, was stopped by police at 9.45pm on Sunday, just minutes after stepping over the low outer perimeter fence next to the palace.
He was arrested on suspicion of trespass, the Met Police said.
It comes as the Standard exclusively revealed that the Queen has expressed her concern about changes to her security.
Police said the man was not carrying any weapons and the incident is not being treated as terrorism-related.
He underwent a mental health assessment and was bailed to appear at a central London police station in early January in relation to his arrest for trespass.
The man was also arrested on suspicion of being in possession of a controlled substance, but no further action was taken on that charge.
In August, a man carrying a knife was arrested after driving a car at police outside Buckingham Palace.
