MINNEAPOLIS (AP) - Minnesota's Department of Natural Resources says it's investigating a report of potentially illegal hunting activity on land owned by the dentist who shot a well-known lion in Zimbabwe.

Leah Thompson hunts on land in northwestern Minnesota next to property owned by Bloomington dentist Walter Palmer. She tells reporters she called the DNR after seeing pickup trucks herding deer on the property last weekend.

Chasing or herding deer with a vehicle is punishable by a $200 fine in Minnesota.

Palmer issued a statement saying he and his guests weren't on his property near Barnesville at the time of the alleged activity. He called the complaint an attack on an innocent man.

Palmer's neighbors, including Thompson's family, have long complained about what they consider unsportsmanlike hunting practices on his land.