The Ohio River and possibly the Licking in KY.
When we lived in central Missouri my daughter and would often drive over from their home in Illinois for a visit. I insisted that she call me as soon as they made it to the Missouri side of the river.
Having an accident and ending up in the water has always petrified me. When something like this happens it’s the first thing I think of.
Prayers for this family that these ladies are found safe and sound.