A two-year-old thoroughbred horse was euthanized this morning after a tragic collision with a three-year-old thoroughbred at the famous Churchill Downs track. While neither horse was a Kentucky Derby contender, the accident happened as nine Derby horses were on the track along with two Kentucky Oaks horses.

Two-year-old Doctor Rap was at the starting gate during an event called "Dawn at the Downs" when he bucked his jockey. The horse then raced down the stretch and collided with Raspberry Kiss. The horses and the jockey were entangled on the ground for some time before the ambulance arrived. Raspberry Kiss suffered a broken hip and was put down at the Rood and Riddle Equine Hospital in Lexington, KY, after the advice of her trainer. X-rays show that Doctor Rap did not suffer any fractures, but the horse continues to undergo more tests. Neither jockey was seriously injured.

"It was a scary situation," said trainer Todd Pletcher, who had three Derby hopefuls on the track at the time, including Join in the Dance, who was in the middle of his workout. "It was a terrible situation and obviously a very dangerous one for everybody out there."

Reporter Bob Domine, from WAVE-TV, caught the collision on tape. The video can be seen below, but we warn you that the footage is a bit jarring.

Click here for more on the story from Kentucky’s Courier-Journal.