DULUTH — The Minnesota Department of Natural Resources confirms that zebra mussels have been found in Sand Lake in Itasca County.

DNR experts confirmed the finding of a homeowner who found adult zebra mussels attached to a dock removed from Sand Lake last fall.

Preliminary searches of connected waters also found zebra mussels in Little Sand Lake.

Sand Lake and Little Sand Lake are part of a chain of lakes that eventually flow into Bigfork River.

Additional searches of connected waters are being performed to determine the scope of the infestation.