TV personality Tracy Grimshaw has been airlifted to a Sydney hospital following a horse riding accident.

Grimshaw, 53, fell from her horse on Sydney’s northwestern outskirts on Thursday morning, was knocked unconscious and has no memory of the fall, according to CareFlight.

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She was taken to Westmead Hospital by helicopter, with a possible head injury.

“She is fine but still under observation,” a statement from Nine Network’s A Current Affair said.

“The ACA team and everyone at Nine wish her a speedy recovery.”