CUDAHY, Wis. (CBS 58) -- The Cudahy Police Department responded to a crash involving three vehicles and a pedestrian on Sunday, Oct. 6. 

According to police, the pedestrian was participating in the Milwaukee Lakefront Marathon that was in progress at the time. 

The crash happened around 11:20 a.m., near Lake Drive and Henry in Cudahy. Traffic was running in lanes bordering the marathon. 

Police say preliminary investigation showed that a 68-year-old woman was traveling southbound in the right lane when she experienced a medical emergency. Her vehicle sideswiped another vehicle, causing minor damage. The vehicle operator was not injured. 

The first vehicle then struck another southbound vehicle, driven by a 65-year-old man, causing that vehicle to roll over on its side. After striking the second vehicle, the first vehicle struck a pedestrian, the marathon runner. The pedestrian was identified as a 28-year-old woman from Medford. 

The striking vehicle came to rest in the tree line east of Lake Drive and Henry. 

The pedestrian and two vehicle operators were transported to a hospital for treatment.

Police say nothing criminal is suspected in this case.