A Waunakee man hunting in rural Iowa County collapsed and was pronounced dead Monday, according to the Iowa County Sheriff’s Office.

Deputies were called to a field off County Road T in Brigham Township at 10:04 a.m. for a report of a hunter down.

Investigators said Fred R. Laufenberg, 58, had walked with his son about three-quarters of a mile off the roadway when he collapsed.

Emergency responders began CPR and Laufenberg was pronounced dead by a physician at the scene.

The preliminary cause of dead of death is believed to be a heart attack, according to the Iowa County Coroner’s Office.  An autopsy is scheduled for Tuesday.