NEW TOWN, N.D. (AP) — Residents and law enforcement on the Fort Berthold Reservation are searching for a woman missing more than a week.

Authorities say 32-year-old Olivia Lone Bear was last seen the evening of Oct. 24 leaving a New Town restaurant. Her father, Texx Lone Bear, tells The Bismarck Tribune that the mother of five children left her wallet and ID behind.

Ground and air searches on the reservation Wednesday and Thursday yielded no clues. Another search is being organized for the weekend.

Three Affiliated Tribes Police Detective Sam Lincoln says the search for now is focused on the reservation. But he says authorities are pursuing leads that Lone Bear might be out of state with another person.

It wasn't immediately clear if police think Lone Bear might be the victim of a crime.

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Information from: Bismarck Tribune, http://www.bismarcktribune.com