Credit: Ian Gavan/Getty

Prince Charles and his wife Camilla Parker-Bowles looked terrified on their way to the Royal Variety Performance as student protesters hurled white paint at their Rolls Royce in London Thursday.

Angered by a recent tuition increase, the disgruntled crowd also bombarded the royal couple's car with bottles and bins in Trafalgar Square.

"They were whisked inside as soon as they arrived. All security were on hand to protect them as they entered the theatre," an onlooker at the London Palladium tells "Charles kept a hand on Camilla's back and she looked very unsettled by what had just happened."

A Clarence House spokeswoman confirmed the news, telling Us that "their Royal Highnesses' car was attacked by the protesters on the way to their engagement at the London Palladium."

Fortunately, Charles, 62, and Parker-Bowles, 63, were unharmed. Thirty-eight protestors and 10 officers were injured; an additional six officers required hospital treatment and suffered various minor injuries.