Santa Anita Park racing to resume March 29 after deaths of 22 horses

ARCADIA, Calif. (KABC) -- Santa Anita Park said it plans to reopen its track by March 29 after reaching a deal with the Thoroughbred Owners of California to revise the facility's medication policies.

The reopening date was pushed back a week because state regulations require a 10-day approval process for the new changes.

MORE: Horse euthanized at Santa Anita Park, becoming 22nd to die

Santa Anita Park confirmed that a horse was euthanized after being injured Thursday, becoming the 22nd equine to die at the facility since the racing season began on Dec. 22.

Santa Anita has been closed for racing for nearly two weeks because 22 horses have died since December.

The Los Angeles District Attorney's office is now investigating.