A teenage girl from horse royalty has died after falling from her horse while competing in a championship event.

Olivia Inglis, 17, was killed when her horse flipped during a combination jump and landed on the teen at about 9.20am on Sunday,Sydney Morning Herald reported.

She and horse Coriolanus were competing in the cross country phase of the two-star competition in Gundy near Scone in the Upper Hunter Valley, 300km north-west of Sydney.

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Olivia Inglis, 17, was killed when her horse flipped during a combination jump and landed on the teen at about 9.20am on Sunday

17-year-old Olivia Inglis (pictured) died at the scene at about 9.20am on Sunday, according to NSW Police

Olivia Inglis (pictured), 17, has died during a horse championship event after her horse Coriolanus struggled during a combination jump near Scone in the NSW Upper Hunter Valley

‘It is with deepest regret we announce that Olivia Inglis suffered a tragic accident whilst competing in the cross country phase at the Scone Horse Trials,’ Scone Horse Trials said in a statement

'Unfortunately, Olivia's horse made a mistake and hit the obstacle which meant the horse fell and landed on her,' a Scone Horse Trials spokeswoman told Sydney Morning Herald.

She said the jump was about 1.1m high.

Three others before her had successfully made the jump on Sunday.

Olivia died at the scene, according to NSW Police.

The Inglis family is well-known in the equestrian industry and Olivia is believed to have been a talented rider.

Friends, fellow riders and touched strangers have begun posting tributes for the 17-year-old following the accident.

'She always had that infectious smile on her face,' a friend's mother wrote on Facebook.

A school friend said she was one of the nicest people she knew.

Tributes have flooded in from grieving loved ones and from within the racing and horse breeding industry

Respected horse trainer Lee Freedman sent his condolences to the Inglis family

Tributes have flooded in from grieving loved ones and from within the racing and horse breeding industry

'To Olivia's friends and family, know that you are not alone, even those of us who don't know you will be keeping you in our thoughts and prayers,' a fellow horse lover wrote.

‘It is with deepest regret we announce that Olivia Inglis suffered a tragic accident whilst competing in the cross country phase at the Scone Horse Trials,’ Scone Horse Trials said in a statement.

The 17-year-old was given urgent medical attention by the on-course paramedic and Westpac rescue helicopter 'but was unable to be revived'.

The horse Coriolanus is in a stable condition and is being treated by vets.

'The Scone Horse Trials committee and Equestrian Australia offer their heartfelt condolences to Charlotte and Arthur Inglis and their family for their tragic loss and request their privacy be respected at this time,' they said in a statement.

Counselling has been arranged for anyone who witnessed the tragedy on Sunday and the remaining events have been cancelled, Scone Horse Trials said in a statement.

Olivia comes from a well-known racing, breeding and horse sales family – her father being the deputy chairman of a company by their family name (Olivia pictured riding a horse during a jump)

Olivia comes from a well-known racing family, and her father breeds and sells thoroughbreds for competition as the deputy chairman of a company under their family name.

The Inglis family has remained of the biggest names and most highly regarded dynasties in Australia’s horse racing and breeding industry for more than 130 years.

Their company, William Inglis & Son, was established in 1867, breeding and selling thoroughbreds for competition. The firm owns a premises at Newmarket which hosts the Easter, Classic, and Sires’ Produce sales and a Victorian base Oaklands, which stages the Premier and Autumn Yearling sales.

Olivia is the daughter of Arthur and Charlotte Inglis. Arthur runs the business alongside Jamie Inglis.

It’s understood Arthur and Charlotte were both present at the time of the accident and the well-loved couple are ‘deeply traumatised’ after watching their daughter’s horrific accident.

The thoroughbreds which have come out of the bloodstock operation include some of the most memorable champions of the turf, breeding Melbourne Cup, Derby and Oaks winners.

Police are investigating and a report will be prepared for the Coroner.

Daily Mail Australia has contacted Scone Horse Trials for further details.