A horse is dead and its rider was injured in an accident Monday night involving a vehicle on Route 430 in the Town of Chautauqua, according to state police.

Trooper Aaron Destro responded to a call around 9:30 p.m. after a woman was reportedly thrown from a horse in the Hamlet of Hartfield.

Investigators said the horse and rider were eastbound on Route 430 when an approaching truck struck the horse.

The rider was thrown, according to troopers, and an oncoming car avoided striking the horse, but a second vehicle struck the animal.

The unidentified horserider was flown to Hamot Medical Center in Erie, Pa. The nature of her injuries could not be determined. Police said she did not appear to be wearing a helmet at the time of the accident.

No injuries were reported to the two drivers.