A search party is combing the desert around Arizona's McDowell Mountain Park, after a 7-year-old grey Arabian horse competing in an endurance event lost his rider and disappeared, according to Phoenix television station KNXV-TV.
Rider Lucian Spataro fell off Masquerade when the horse tripped and fell about 20 miles into the race Saturday morning. Spataro was injured, but managed to walk more than five miles to get help, KNXV-TV reported.
Searchers are now using four-wheelers and helicopters to survey the area. Spataro told KNXV-TV that he is offering $10,000 for the horse's return.
Anyone with information is asked to call the Scottsdale Police Department at 480/312-5000.