ST. PAUL, Minn. (AP) — St. Paul police are investigating the death of a man whose body was found outdoors on New Year's Day in frigid weather.

Police spokesman Sgt. Mike Ernster says officers were called late Monday morning to the Summit-University neighborhood for an unresponsive man. The St. Paul Fire Department also responded and pronounced the man dead.

Ernster tells the Minneapolis Star Tribune the man was found outside "exposed to the conditions."

Lori Hedican, chief investigator for the Ramsey County medical examiner's office, says the man's autopsy will be delayed until Wednesday due to "exposure."

The name of the man and his cause of death are under investigation.