South Korean eventer Kim Hyung-chil was crushed by his horse after missing a jump on a muddy equestrian course at the Asian Games in Doha, Qatar, on Thursday (Dec. 7), raising concern over how organizers managed the event.

It was the first death of a competitor in the 55-year history of the Asian Games.

Kim died after his 12-year-old gelding, Bundaberg Black, missed the eighth fence on the cross-country course, threw the rider and then rolled over him.

South Korean Olympic officials said they believed poor course conditions due to heavy rain and horse fatigue from the event’s tight schedule may have contributed to the accident. They also expressed disappointment organizers decided to resume competition just hours later, before the South Koreans had decided whether to continue to field their team