Prince Charles and his wife, Camilla, Duchess of Cornwall, had a mid-air scare today when their helicopter was forced to make an emergency landing.

Charles and Camilla were 15 minutes into their flight from London to the Hay Literary Festival in Powys when a “technical fault” aboard the chopper forced the pilot to divert the flight to Denham Aerodrome in Buckinghamshire, according to the Press Association.

“The pilot carried out a controlled emergency landing after diverting to the airport,” a spokesman for the royal couple said.