Cheltenham festival winning jockey Michael O’Sullivan has tragically died after being involved in a five-horse pile-up at Thurles racecourse.

The 24-year-old was one of three fallers at the final fence during the race on February 6.

The rest of the meeting was abandoned as the air ambulance arrived to take O’Sullivan to hospital.

It was later confirmed that he was being treated in the intensive care unit at Cork University Hospital, where he had remained since.

However, on Sunday morning it had been confirmed that he had died.

Dr Jennifer Pugh, chief medical officer of the IHRB, said in a statement: “Michael sadly passed away in the early hours of Sunday morning surrounded by his loving family in Cork University Hospital. We extend our appreciation to the multidisciplinary teams who provided the best of medical care to Michael, both on the racecourse and in Cork University Hospital.

“Michael’s family took the decision to donate his organs at this incredibly difficult time, but in doing so made a choice that will make a real difference to the lives of other patients and their families.

“I have had the privilege of knowing Michael through his amateur and professional career and his dedication, modesty and kind nature always made him a pleasure to be around. Michael’s success and his humility will have inspired many and I share the feeling of loss today with all those who knew him.

“Michael’s family would like to reiterate their gratefulness for all the support they have received in the last couple of days and express their appreciation to the local community and racing family. The O’Sullivan family have asked for privacy at this time.”

O’Sullivan enjoyed a day one double at the 2023 Cheltenham Festival, for as well as Marine Nationale he also scored aboard Gordon Elliott’s Jazzy Matty in the Boodles Juvenile Handicap Hurdle, and rounded off his breakthrough campaign by being crowned champion conditional in Ireland with 32 winners.

In all, O’Sullivan rode 90 winners in Ireland and five in Britain under rules, with his most recent big-race success coming aboard Embassy Gardens for champion trainer Willie Mullins in the Grade Three New Year’s Day Chase at Tramore.

Darragh O’Loughlin, CEO of the IHRB, said: “Michael was an exceptionally talented young rider who was always popular in the weighroom.

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“Michael will be deeply missed by everyone in racing who had the pleasure of knowing him. Our hearts go out to Michael’s family, especially his parents Bernadette and William and his brother Alan, who will feel his loss most keenly.”

As a mark of respect, the fixture at Punchestown on Sunday and the Point-to-Point fixtures have been cancelled.