An unidentified man has survived Tuesday after plunging more than 150 feet over Niagara Falls.

The man -- who Niagara Parks Police say appeared to be "in crisis" before jumping into the river on the Canadian side -- was observed going over the Horseshoe Falls around 4 a.m. Tuesday morning. He then fell around 167 feet before hitting the water below.

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It was not immediately clear why the man jumped.

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The man later was spotted sitting next to an observation platform near the base of the falls and was taken to a hospital to be treated for non-life threatening injuries, police said in a statement provided to Fox News.

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His plunge Tuesday comes 59 years to the day that 7-year-old Roger Woodward went over the falls with a life jacket, and also survived.

Fox News' Travis Fedschun contributed to this report.