ONALASKA, Wis. (WKBT) - The accident happened around 3:10 p.m. Monday near the intersection of Sand Lake Road and Main Street.
When first responders arrived on scene, they found two heavily damaged vehicles and a utility pole severed at its base.
Following a preliminary investigation, the Onalaska Police Department reported the driver of the truck traveling eastbound on Main Street suffered an acute medical emergency. According to a witness, the truck was speeding up when it struck the back of an SUV. The truck then hit a traffic sign, retaining wall, and then a utility pole before coming to a stop.
The driver of the truck, Ronald Sprehn, 78, of Onalaska, was pronounced dead at an area hospital. The passenger of the truck, JoAnn Sprehn, 78, of Onalaska, was treated for non-life threatening injuries.
The driver of the SUV was also treated at an area hospital for non-life threatening injuries.
No charges are expected to be filed as a result fo the investigation, according to Onalaska Assistant Police Chief Cavender.
One of the drivers was unresponsive in the driver's seat.
Onalaska Police officers and the driver of the second vehicle did CPR on the person until the Onalaska Fire Department arrived.
Three people were taken to Gundersen Health. The driver of one of the vehicles was pronounced dead at the hospital.
Anyone with information or who may have witnessed the crash is asked to call Onalaska Police at (608) 781-9550.
Main Street between 11th Ave. to Sand Lake Road was closed for more than 5 hours while crews completed utility repairs.
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