The Latest on the death of a 1-year-old on a Montana Indian reservation (all times local):

10:30 a.m.

A woman is behind bars in a Montana tribal jail in connection with the death of a 1-year-old girl who authorities believe was kidnapped.

FBI spokeswoman Sandra Yi Barker on Thursday wouldn't release the 42-year-old woman's name, citing an ongoing investigation into the death of Kenzley Olson.

Barker says the woman is jailed on unspecified charges on Montana's Fort Peck Indian Reservation. She is expected in tribal court Thursday.

Authorities have said the girl was abducted Tuesday morning from her house in the small town of Poplar. Her body was discovered Wednesday.

The cause of death and other details haven't been released. A Roosevelt County spokesman has said investigators were searching for additional people for questioning.

Barker says federal charges also are anticipated in the case.