BOISE, Idaho (AP) — Officials are investigating the killing of a young female grizzly bear shot by the caretaker of a private residence in eastern Idaho near Yellowstone National Park.

Gregg Losinski of the Idaho Department of Fish and Game says the bear was killed Friday evening in the Island Park area. No humans were injured. The U.S. Fish and Wildlife Service is investigating because grizzlies are listed as a threatened species.

Losinski says the caretaker was carrying a high-powered rifle because a bear had been at the property before and torn down a birdfeeder. Losinski says the bear was killed only a few miles from the site of an Aug. 15 grizzly bear attack on two federal contract workers. One was bitten on the thigh and backside, and the other on the hand.