Historically, people have tried to break out of the Tower of London - but now police are hunting a man who tried to get in.
Officers have released an image of a man who illegally entered the Tower's grounds at around 10.05pm on Saturday, April 6, while it was closed to the public.
He was challenged by Tower of London security staff and made off, and was last seen climbing down towards the Thames foreshore near St Katharine Docks.
Police are appealing for anyone who recognises the man to come forward, and have said that there are also concerns for his welfare.
Anyone with any information is asked to call police on 101 or via Twitter @MetCC quoting CAD2706/14MAY.
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