New Zealand-based jockey Rebecca Black has died after suffering a fall at Gore racecourse on Sunday.

The 40-year-old mother-of-three was riding Point Proven when both her mount and Misscattlecreek came to grief 700 metres from the finish.

Misscattlecreek's jockey Terry Moseley reportedly escaped without serious injury.

Black's former husband Kelvin Tyler confirmed two of Black's three children saw the accident unfold.

"They're obviously pretty shocked and devastated," he told the New Zealand Herald.

Police confirmed a jockey's death shortly after 4pm and the remainder of the The Tapanui Racing Club meeting was abandoned.

New Zealand Thoroughbred Racing chief executive Greg Purcell said: "All our thoughts are with Rebecca's family and friends at this dreadful time."