Security measures will be reviewed as part of an investigation into a break-in at Buckingham Palace, the Metropolitan Police have confirmed.
"A review of the specific circumstances of this incident is being carried out," a spokesman confirmed. "No members of the Royal Family were at Buckingham Palace at the time of the incident."
Two men have been arrested and bailed following the break-in on Monday evening.
A man has broken into Buckingham Palace sparking a major security alert - he was was arrested inside the Queen's home earlier this week.
Last Monday's break-in at Buckingham Palace is the latest in a series of security scares involving the Royal Family.