Prince Andrew has been receiving a slew of criticism following news of his friendship with convicted sex offender, Jeffrey Epstein. Amid his PR nightmare, a source is claiming Prince Charles was forced to “intervene” when his brother got into a “heated” argument with a royal aide.

While those close to the royal family denied the row between the Duke of York and the palace employee became physical, a source revealed Andrew was furious before Charles stepped in to calm the situation.

A palace insider told the Daily Mail that the argument began after the royal aide told Prince Andrew that one of his requests couldn’t be done.

“There were heated words on both sides, but the altercation was in no way physical. It was a verbal dispute. It was a work-related issue. The Duke got very cross that what he wanted wasn’t possible,” the source explained.

As the argument began to escalate, Prince Charles intervened and told his brother to apologize to the staff member. “The Duke explained the situation to the Prince of Wales and left it at that. There was no apology because there was nothing to apologize for. The Duke maintains a good relationship with the Prince of Wales,” the tipster revealed.

While some may be surprised Charles’ reprimanded his brother in front of an employee, the insider revealed the future king is typically aware of issues going on inside of the palace.

“He is the second most senior member of the family and is known to take action when and where is necessary. Mostly he is well informed, and will intervene where it is appropriate to do so,” the royal insider added.

In the past, there have been reports suggesting, Prince Charles and Prince Andrew have had several disagreements. Last year, a royal expert claimed there was a rift between the brothers after the Prince of Wales suggested the royal family should be “slimmed down.”

The idea meant taking away several royal perks from Prince Andrew’s daughters, Princess Eugenie and Princess Beatrice.

Prince Andrew’s latest dispute alleged took place weeks ago. However, Buckingham Palace and Clarence House reportedly declined to comment on the rumored argument.

Prince Charles and Prince Andrew
Prince Charles and Prince Andrew attend Christmas Day Church service at Church of St Mary Magdalene on Dec. 25, 2017 in King's Lynn, England. Getty Images/Chris Jackson