A 35-year-old Duluth man died late Tuesday in Fredenberg Township after a shed had fallen on him.

David Szyszkoski was attempting to move the shed, the St. Louis County Sheriff’s Office said in a news release Wednesday. The Sheriff’s Office responded at 10:30 p.m., said the news release, and Szyszkoski was later pronounced dead at the scene - 6599 Island Lake Dam Road.

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The cause of death is under investigation.

The St. Louis County Rescue Squad and Fredenberg Volunteer Fire Department also responded to the scene.

Fredenberg Township is 18 miles north of downtown Duluth near the Island Lake Reservoir.

Szyszkoski is listed as a former resident of Chassell, Mich., in a death notice published online at duluthnewstribune.com. The notice described his death as having been “from injuries received in an accident.”