Published: Apr 19, 2010 11:22 AM EDT

BERCHTESGARDEN, Germany - The international luge federation says "no single reason" caused the death of Georgian racer Nodar Kumaritashvili in a training run at the Vancouver Olympics.

In a report released Monday by FIL, the sport's governing body says "what happened to Nodar has been an unforeseeable fatal accident." FIL secretary general Svein Romstad says that "after an in-depth analysis we concluded that there was no single reason, but a complex series of inter-related events which led to this tragedy."

During training in February, only hours before the opening ceremony, Kumaritashvili was flung from the ice at the Whistler Sliding Center and struck a steel pole after losing control of his sled on the final curve.