BADLANDS NATIONAL PARK, S.D. (AP) — A body has been recovered from the Badlands National Park after a group of visitors alerted park rangers to an abandoned backpack.

Park officials say the FBI and the Pennington County Sheriff's Office assisted in recovering the remains Wednesday. They say a number of agencies are working together to identify the individual and cause of death.

Park officials say four backpackers notified rangers about a backpack and other personal items they had found in the Sage Creek Wilderness area Tuesday evening. The rangers hiked out to the site Wednesday morning, and after conducting a more extensive search, the remains were found in a dry creek bed at the bottom of the ravine.

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