The member of the Georgian National Olympic team, Nodar Kumaritashvili, 21, was on his final official training run (the 16th) when he had a "serious crash" near the end of the 4,500-foot-long course and was propelled off the track, according to the International Olympic Committee. Kumaritashvili was scheduled to compete in the men's singles luge event, which begins Saturday. The official training session was being held just hours before the opening ceremony for the Winter Games. An investigation into the cause of the crash is under way, the IOC (International Olympic Committee) said, and the track was closed after the accident. "This is a time of sorrow, not a time to look for reasons," IOC President Jacques Rogge said during an emotional news conference confirming Kumaritashvili's death. "That will come in due time."