Prince Philip and Queen Elizabeth reportedly survived a secret assassination plot in Australia several years ago.

Detective Superintendent Cliff McHardy said during a previous interview that the royal couple was traveling by train to the farming town of Orange when the train was struck by a large log wedged across the rails.

McHardy said that what happened was an act of deliberate sabotage to derail the train and it could have killed Her Majesty and the Duke of Edinburgh. Luckily, the train driver was driving slowly that’s why the tragedy was averted.

“If the train had reached its normal speed, it would have plunged off the tracks and into an embankment. My investigations showed that the log was deliberately placed on the tracks,” he said.

As of late, it is still unclear if McHardy’s claims are accurate because, in 2009, a spokesperson for the New South Wales Police said that they are looking into his story to determine its validity. At that time, Buckingham Palace said that they had no knowledge of the incident.

Meanwhile, the alleged secret assassination was not the only shocking thing that happened to the royal couple during their tour. While they were in the United States, it was revealed that the Queen asked Prince Philip to shut up during one of their discussions.

In the book “Queen Elizabeth II: Her Life in Our Times,” American writer Susan Crossland said that in 1976, the Queen asked her husband to keep quiet during a moment of frustration.

Prince Philip was sounding off his ideas about something when the Queen asked him to shut up because he didn’t really know what he was talking about. But according to Crossland, the Queen did not mean to offend Prince Philip. Rather, it is the monarch’s natural personality to call out those who did not make sense.

The Queen and Prince Philip have been married for decades so they already know when and when not to take offense.

Queen Elizabeth II, Prince Philip
The Queen, Prince Philip sign the visitors book during their visit to Canada House on July 19, 2017 in London, England. Getty Images/Stefan Rousseau - WPA Pool