Prince Andrew held at gunpoint in Buckingham Palace after being mistaken for intruder

Prince Andrew was recently targeted by "jittery" armed guards of the Buckingham Palace, following the discovery of a genuine intruder in the Palace's state rooms two days earlier.

The Queen's 53-year-old son was also ordered to "put his hands up and get on the ground" by the police, the Daily Express reported.

A royal source told the publication that the Prince was taking a stroll in the grounds, when he was pounced upon by the guards and released only when he proved his identity.

The source said that everyone is talking about these two incidents and can't quite believe what has happened.

The insider asserted that the fact that the previous intruder was able to wander off unchallenged and not be spotted by anyone is bad enough, but then to mistake the Duke of Edinburgh for another intruder is almost incomprehensible.

The source insisted that there is a high turnover of the police on duty at the Palace, but you'd think anyone would know what the Prince looks like.

It's fair to say that to describe the Duke as unhappy and the two officers as highly embarrassed is the biggest understatement of the century, the insider added.