EPWORTH, Iowa (AP) - State environmental officials are investigating a fish kill in a river in eastern Iowa.
The Iowa Department of Natural Resources says in a news release that thousands of dead fish - mostly rough fish and minnows - were found Thursday along a 10-mile stretch of the Little Maquoketa River starting north of Epworth and running downstream to Durango.
Investigators say a pollutant could not be identified from preliminary field tests, and the source of the fish kill has not been identified.
Officials took water samples for testing and will continue investigating.
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