OMAHA, Neb. (AP) — Omaha authorities are investigating the death of a man whose body was found outside in the frigid weather.

Police spokesman Michael Pecha (PEH’-kuh) says officers were sent to the southwest Omaha location around 7 a.m. Tuesday to check on a report of a man down. Pecha says early signs suggest the man died from exposure. A car with one door open was found in the area Monday night.

The National Weather Service says the overnight low in Omaha hovered near zero, with a wind chill that hit minus 20.