CLARE, Mich. (AP) — The Department of Natural Resources hasn’t been able to confirm or disprove that a man was attacked by a bear in September.

Spokesman Ed Golder tells The Associated Press that tests performed on material from the hunter’s knife were inconclusive, although the DNR has no reason to doubt the story.

Ron Davis says he was hunting for porcupine in Clare County when a bear knocked him to the ground.

Davis says he stabbed the bear and the animal ran off. He showed scratches on his arm to WPBN-TV and said it wasn’t a “vicious attack.”

The DNR set up a trap with bacon, 100 miles north of Lansing, but no bear was captured.

Michigan has as many as 10,000 black bears, with 90 percent in the Upper Peninsula.