WILLIAMS, Minn. - The Ramsey County Medical Examiner says the two men found dead aboard a boat on the shore of Lake of the Woods died from accidental carbon monoxide poisoning.
Authorities identified the men as Lonnie Ray Norberg, 44, of Champlin and Jeffrey Edward Wheeler, 35, also of Champlin.
A third man, Christopher Andrew Klick, 43, of Crystal, survived the incident and remains hospitalized at Altru Hospital in Grand Forks.
The Lake of the Woods County Sheriff's Office responded to a report of a boat that floated to shore in the Birch Beach area at about 11:30 p.m. Sunday, north of Williams, Minnesota.
A preliminary investigation indicates that a faulty exhaust system may be the cause of high levels of carbon monoxide.
The investigation continues with the assistance of the Minnesota Bureau of Criminal Apprehension.