Charlotte Dujardin, Britain’s joint-most decorated female Olympian, has pulled out of Paris 2024 after a video emerged showing her “making an error of judgement”.

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

The 39-year-old also said she was under investigation from the British Equestrian Federation and British Dressage.

“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,” she said in statement.

“I am deeply ashamed and should have set a better example in that moment.”

Dujardin said the video was “filmed four years ago” and she was “devastated to have let everyone down”.

BBC Sport has not seen the video in question and it is currently unclear what the nature of the investigation is.

Sources have told BBC Sport the video was submitted directly to the FEI.

Becky Moody and her horse Jagerbomb are Team GB’s alternate combination for the dressage