YELLOWSTONE NATIONAL PARK, Wyo. (AP) — Rangers are still searching for a grizzly bear that killed a Michigan hiker in Yellowstone National Park.

Park spokeswoman Linda Miller said Tuesday that the bear has not been located.

Officials say a grizzly bear killed 59-year-old John Wallace, of Chassell, Mich., last week along a trail about five miles from the nearest trailhead.

Rangers have set traps with the intent to capture and kill the bear.

It is the second time a park visitor has been killed by a bear this year. In July, a female bear with cubs attacked a couple from California, killing a man. No action was taken against that bear because of the cubs.

The bear that killed Wallace is believed to be a different animal than the one involved in the July killing.