SUPERIOR – DNR environmental and fisheries staff are investigating the third fish kill this week, this time in western Emmet County about four miles northwest of Estherville.
While only a few dead minnows were reported in the unnamed creek, investigators think dead fish will number in at least the hundreds.
DNR staff collected water samples for laboratory analysis, but preliminary investigation indicates aerial spraying Tuesday evening in an adjacent field may be the cause.
The DNR will continue to investigate, looking for the responsible party, and seeking appropriate enforcement action.