updated 6/2/2010 3:21:08 PM ET 2010-06-02T19:21:08

A lightning strike in Yellowstone National Park injured nine people waiting to see Old Faithful geyser erupt.

One man was hospitalized while the others suffered minor injuries.

The lightning struck about 4 p.m. Tuesday, Yellowstone spokesman Al Nash said.

He said a 57-year-old man, whose name was not released, was taken to Eastern Idaho Regional Medical Center in Idaho Falls, Idaho. Nash said his condition was not available but some bystanders performed CPR on him before rangers arrived.

Seven others complaining of shortness of breath, tingling or numbness were treated and released from Old Faithful Clinic, while a ninth person struck did not seek medical attention.

Hundreds of visitors were in the area at the time.

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