ELMONT, N.Y. (AP) _ A horse was fatally injured in a Belmont Park paddock on Friday, the second time such an accident has occured in the past four weeks.

Lanvinity, a four-year-old maiden, flipped over in the walking ring prior to the fifth race and incurred fatal injuries to her head.

``She flipped over and hit her head on the ground, right at the base of her skull,'' said Dr. Neil A. Cleary, the chief examining veterinarian for the New York Racing Association. ``She died as a direct result of her injries.''

Diane Nelson, who was to ride the horse, was not injured in the incident.

``They were just about to give me a leg up when it happened,'' she said. ``It was terrible''.

On June 26, another horse, Three Ring, reared up and fell over backward, fracturing her skull just prior to the Matron Stakes. She was euthanized at the scene.