Story highlights Motorbike rider Michal Hernik was found dead by Dakar organizers on Tuesday

Mystery surrounds his death, after both body and bike were found unharmed

Hernik's loss takes Dakar death tally to 64 since rally began in 1979

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(CNN) The 2015 Dakar rally suffered tragedy on only its third day of competition when motorbike rider Michal Hernik was found dead.

But mystery surrounds how the 39-year-old Pole lost his life.

No damage was found to either his body or bike, said race director Etienne Lavigne.

Hernik, who was located just a few hundred meters from the race track, had removed his helmet prior to his death.

"The circumstances surrounding his death have yet to be determined, as the competitor did not show any external signs of an accident," said a rally statement.

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