ST. PAUL (AP) — Evidence of invasive zebra mussels has turned up in Leech Lake, the third-largest lake in Minnesota.

The Department of Natural Resources said Thursday it found zebra mussel larvae in samples collected from two locations nearly 17 miles apart. While the DNR hasn't found any adults in the lake, the locations and numbers of the larvae indicate a reproducing population may be present.

The DNR will work with the Leech Lake Band of Ojibwe and other stakeholders to conduct a broader search and discuss response options.

The agency has confirmed zebra mussels in over 120 lakes, streams and wetlands, including some of the state's most popular fishing and recreational lakes and rivers.

Zebra mussels disrupt the aquatic environment, cut swimmers' feet, reduce boat and motor performance, and clog water intake pipes.