A man has been arrested for allegedly breaking into the grounds of Windsor Castle.
The suspect in his 30s was said to have gained access just after 1pm on Sunday at the royal residence.
Investigations have been launched by both the Metropolitan Police and Thames Valley Police.
It is close to where William and Kate live at Adelaide Cottage with their children George, Charlotte and Louis.
A man was detained on suspicion of trespass on a protected site and possession of Class A drugs, before being bailed, police confirmed.
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Royal expert Richard Fitzwilliams told Metro: ‘This just highlights that security is of paramount importance to members of the royal family.
‘It is hard to know how they are all feeling but for one reason or another, individuals are periodically drawn to do this.
‘While it is a pity that cases like this have to be reported on, I’m glad to hear that police acted quickly to detain the suspect.
‘As criminals become more intelligent and with the rise of social media, this underlines the importance of our security system for royal family members.’
A Metropolitan Police spokesperson today said: ‘A man in his 30s has been arrested on suspicion of trespass on a protected site and possession of Class A drugs after entering restricted grounds at Windsor Castle.
‘Officers in the grounds spotted the man just after 13.00hrs on Sunday 1 June and quickly arrested him.
‘He was then passed into the custody of Thames Valley Police.’
A spokesperson for Thames Valley Police, said: ‘At just after 1pm on Sunday 1 June a man entered restricted grounds at Windsor Castle.
‘He was quickly challenged by Met police officers and arrested. He did not enter the inner grounds of Windsor Castle.
‘He was arrested on suspicion of trespass on a secure site and possession of class A drugs. He has been bailed and an investigation is ongoing by Thames Valley Police.’
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