CLAREMORE, Okla. (KFOR) - The Oklahoma Highway Patrol has issued a Silver Alert for a man last seen in the Claremore area.

According to OHP, 75-year-old David Calhoun is 6'0" and 175 pounds. He was last seen on foot wearing khaki or white shorts and a t-shirt.

Officials say he has dementia and other serious medical conditions.

If seen, call 911.

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