Horse trainer Saffie Joseph Jr. has been suspended from Churchill Downs indefinitely after two of his horses died suddenly at the racetrack within the last few days – with the suspension comes the scratch of Joseph's Lord Miles from the Kentucky Derby on Saturday.

Joseph was the trainer of Parents Pride and Chasing Artie. Both horses collapsed and died on the track Saturday and Tuesday, respectively, after races.

CLICK HERE FOR MORE SPORTS COVERAGE ON FOXNEWS.COM

Saffie Joseph at track

Saffie Joseph Jr., the trainer of Lord Miles, is shown during morning training for the Kentucky Derby at Churchill Downs on May 4, 2023, in Louisville, Kentucky. (Andy Lyons/Getty Images)

"Given the unexplained sudden deaths, we have reasonable concerns about the condition of his horses, and decided to suspend him indefinitely until details are analyzed and understood," Bill Mudd, president and chief operating officer of Churchill Downs Incorporated, said in a statement. "The safety of our equine and human athletes and integrity of our sport is our highest priority. We feel these measures are our duty and responsibility."

Saffie Joseph watching horses

Trainer Saffie Joseph is shown at Churchill Downs on May 4, 2023, in Louisville, Kentucky. (Matt Stone-USA TODAY Sports)

KENTUCKY DERBY 2023: WHAT TO KNOW ABOUT THE FIRST LEG OF HORSE RACING'S TRIPLE CROWN

Two other horses have died at the track in recent days. Take Charge Briana and Wild on Ice were both euthanized after injuries, the latter of which was set to run in the first leg of the Triple Crown, but no cause of death have been revealed for Saffie's horses.

No horses trained under Joseph had died prior to Saturday.

Joseph said earlier Thursday that investigators examined his barn, checked the horses’ veterinary records and took blood samples from each of his horses, which showed nothing abnormal. The feed, hay, straw and supplements used by the horses were checked, too.

Roses and twin spires

A general view of roses in the winner's circle with the Twin Spires in the background during the Kentucky Derby on May 1, 2021, at Churchill Downs in Louisville, Kentucky. (Brian Spurlock/Icon Sportswire via Getty Images)

CLICK HERE TO GET THE FOX NEWS APP

Post time for the Derby is 6:57 p.m. ET.

The Associated Press contributed to this report.