String of horse deaths before the Kentucky Derby reignites scrutiny about the sport

An equine ambulance arrives at Churchill Downs during the Kentucky Derby on Saturday in Louisville, Ky.

Michael Reaves / Michael Reaves

The 149th Kentucky Derby may be over, but questions about what led to a string of horse fatalities at its famed track have just begun.

Over the past week, a total of seven horses died in the lead-up to the final race on Saturday — prompting an investigation into the deaths and fueling outrage from animal rights activists.

The disturbing death toll seen at Churchill Downs, home of the Kentucky Derby, is the latest scandal to hit the horse race industry despite recent efforts to make the sport safer for animals.