Fire officials in Northern California say a cyclist was hospitalized for unknown injuries and 30 others were treated for hypothermia during a triathlon near Lake Berryessa.
The Napa Valley Register reports firefighters with Cal Fire treated a cyclist Saturday morning who was then taken to a hospital.
Cal Fire says 30 other participants were taken to warming areas and released. The temperature in the area at the time was 37 degrees Fahrenheit.
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Saturday was the second of the two-day event that is part of the HITS Triathlon Series. Participants take part in five competitions, including swimming, biking and running.