OSHKOSH, WI (WTAQ) - Authorities in Oshkosh are warning people to be careful and not go out on the icy Fox River.
The Oshkosh Police and Fire Departments, along with UW-Oshkosh Police, have noticed snowmobile tracks on part of the river. Officials say vehicle tracks are not an indication of the ice being safe to walk on.
Water in the Fox River continues to flow, despite the cold temperatures. That flowing water erodes ice from underneath and can cause some areas to be thin and unstable.
Authorities are asking people to use bridges to get to the other side of the river, rather than use the river itself as a crossing point.