Charlotte Dujardin, Britain’s joint-most decorated female Olympian, has withdrawn from the Paris 2024 Olympics following the emergence of a video showing her “making an error of judgement.”

The six-time dressage medallist announced she is under investigation by the International Federation for Equestrian Sports (FEI) and will “withdraw from all competition while this process takes place.”

The 39-year-old also revealed she is under investigation by the British Equestrian Federation and British Dressage.

In a statement, Dujardin expressed regret, saying, “What happened was completely out of character and does not reflect how I train my horses or coach my pupils. However, there is no excuse. I am deeply ashamed and should have set a better example in that moment.”

Dujardin explained that the video was “filmed four years ago” and expressed her devastation at having let people down.

BBC Sport has not seen the video in question, and the specific nature of the investigation remains unclear. Sources indicate that the video was submitted directly to the FEI.

In Dujardin’s absence, Becky Moody and her horse Jagerbomb will serve as Team GB’s alternate combination for the dressage event.