Previous year a homeless man who trespassed in the grounds of Buckingham Palace and damaged items before sleeping on them was jailed for 28 days.
A man has been arrested after climbing Buckingham Palace's front gates in the early hours of the morning.
In line with protocol, the would-be crook knew the Queen was home due to a Union Jack flag flying high above the palace, although it's believed Prince Philip was elsewhere at the time.
In September 2013 a security review was launched after an intruder was able to scale a fence and get inside the palace, before being arrested by police.
The 22-year-old was held on suspicion of trespass at around 02:00 BST on Wednesday by specialist royal officers, the Metropolitan Police Service said.
Police say the intruder wasn't carrying a weapon and that the incident is not seen as related to any extremist threat.
The suspect is in police custody.
It was nearly 37 years to the day from when Michael Fagan broke into Buckingham Palace and made it into The Queen's bedroom in 1982.
Fears are also mounting the intrusion could have been a copycat of Michael Fagan, who famously managed to break into Her Majesty's bedroom exactly 37 years ago.
Palace officials declined to say whether the queen was told about the incident.
Buckingham Palace is yet to comment on the matter.
"There was an intruder at the Palace while the Queen lay sleeping in her bedroom and he was on the loose before the cops arrested him".
The Sun understands the Queen was the only senior royal sleeping at the Palace because of the refurbishment work going on.
"He was determined to get inside the palace and was banging down the doors but, thank goodness, this time everything was locked up".
As the 31-year-old schizophrenic began to tell his monarch about his family problems, she pushed the panic button by her bed but got no response.