Crews in Fond du Lac are investigating an unknown substance leaking into the Fond du Lac River.
A HAZMAT crew is testing the substance. They estimate 90% of the spill is contained.
Hazmat crews testing liquid to try and determine what type of substance is leaking. pic.twitter.com/WXRwbH0fQw
— Fond du Lac Fire (@fdlfire) May 11, 2017
NBC26 has a crew on the way and will update the story as we learn more.
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