ST. PAUL (AP) - Minnesota wildlife officials say 21 more people will be charged in an investigation into game fish poaching in north-central and northwestern Minnesota.

The Department of Natural Resources plans a news conference Monday to announce charges. They say they come from a three-year investigation into poaching.

The DNR teamed with federal wildlife officials, the Red Lake Band of Chippewa and the Leech Lake Band of Ojibwe in the investigation.

Ten men were indicted last week on federal charges as part of the same investigation. Authorities said then that they were suspected of poaching and selling hundreds of thousands of dollars in walleye and other protected fish.