Prince Charles and Camilla, the Duchess of Cornwall, greet well-wishers at a previous Sandringham Flower Show. Picture: Kevin Elfleet.

The 139th Sandringham Flower Show has been cancelled due to the coronavirus pandemic.

Thousands were expected to attend to the event on the royal estate on Wednesday, July 29.

The announcement comes as Clarence House issued a statement today confirming Prince Charles has tested positive for coronavirus.

The Prince of Wales usually attends the Sandringham Flower Show with The Duchess of Cornwall, who does not have the virus.

In a statement today, show organisers said: “This will be only the second time in peacetime the popular event has not gone ahead.

“We know that our exhibitors, competitors, suppliers and partners put great effort into planning for the show and we hope that by taking this decision now we have at least given them some clarity and prevented unnecessary expense and work.

“We will be making arrangements to contact all ticketholders, trade stands, exhibitors and suppliers as soon as we can, but we ask for their patience in the meantime.”