BISMARCK, N.D. (AP) — Bismarck police have identified a man who died in subzero temperatures but are still investigating the circumstances of his death.

The frozen body of 52-year-old Clinton Kaseman was found near the Missouri River on Saturday, beneath an Interstate 94 bridge.

Authorities say Kaseman wasn't homeless. The Enable Inc. agency that serves people with intellectual and developmental disabilities confirmed to The Bismarck Tribune that Kaseman had been receiving services at a property owned by the agency.

Police aren't treating the death as suspicious. They have said the cold weather might have been a factor in the death. An autopsy is being done.

The temperature in Bismarck reached 18 below zero (-28 Celsius) Saturday morning, with a wind chill factor of about 40 below zero (-40 Celsius).

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Information from: Bismarck Tribune, http://www.bismarcktribune.com