(Radio Iowa) – The Iowa Department of Natural Resources is investigating a large fish kill in northeast Iowa. The D-N-R says the fish kill was first identified in Crane Creek in Bremer County near the town of Readlyn. A news release says the creek has been significantly impacted, with dead fish being seen nearly 20 miles downstream, near Dunkerton in Black Hawk County.

The D-N-R gives an intersection near Readlyn where the problem may have originated but did not identify the source.