Discarded horseshoes are seen here in the barn area during the morning training for the Kentucky Derby at Churchill Downs on April 29. Officials from the Churchill Downs racetrack have described the recent deaths of four horses as "unacceptable."
Mandatory Credit: Andy Lyons/Getty Images
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Churchill Downs: After four horses die, home of Kentucky Derby calls circumstances 'unacceptable' and 'troubling'
Officials from the Churchill Downs racetrack, the home of the famed Kentucky Derby, have described the recent deaths of four horses as "unacceptable" and "troubling."
