A suspected burglar has been arrested after being discovered in a royal state room at Buckingham Palace.
Police said the man was found 'in an area currently open to the public during the day' after scaling a 12ft fence to get into the palace.
A security review has now been launched following the break-in. No members of the royal family were present at the palace at the time of the incident, it has been reported.
Break-in: A suspected burglar has been arrested after being found inside Buckingham Palace
Summer break: The Queen has been spending her summer break at Balmoral Castle since the beginning of August
The man has been arrested for burglary, trespass and criminal damage.
A second man was arrested outside the palace for conspiracy to commit burglary following the incident shortly before 10.30pm on Monday.
According to reports, police and security rushed to the palace after motion senors were set off.
A spokesman for the Metropolitan Police said: 'Both men have been bailed to return to a central London police station and enquiries continue.
Breach: The break-in is one of the most serious security breaches at the palace since 1982, when Michael Fagan evaded guards and walked into the Queen's bedroom
Breach: The break-in is one of the most serious security breaches at the palace since 1982, when Michael Fagan evaded guards and walked into the Queen's bedroom
'A review of the specific circumstances of this incident is being carried out. No members of the Royal Family were at Buckingham Palace at the time of the incident.'