The Norwegian Biathlon Union shared more information about Sivert Guttorm Bakken, who was found dead on Christmas Eve. Norwegian biathlon champion Sivert Guttorm Bakken, 27, was found dead in his hotel room in Passo Lavazè in northern Italy on Tuesday. The Norwegian Biathlon Union said on Wednesday that the deceased Bakken had been wearing an oxygen mask used to simulate high-altitude training.

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