The Latest on the search for a missing child in Montana (all times local):

12:50 p.m.

A missing 4-year-old girl has been found alive on the Fort Peck Indian Reservation in Montana after she was reportedly abducted.

Roosevelt County spokesman Lee Allmer says the girl was found Sunday and was undergoing a medical exam to make sure she was not harmed.

The girl was found by Undersheriff Corey Reum a few miles north of Wolf Point, the town where witnesses say she was taken by a young man in a park about 9:30 p.m. Friday.

The sheriff's office says John Lieba was taken into custody and questioned in Wolf Point. Allmer says no information is being released on where the girl was found or details about Lieba.

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9:30 a.m.

The Roosevelt County Sheriff's Office is asking the public not to interfere in the search for a 4-year-old girl who reportedly has been abducted on the Fort Peck Indian Reservation in Montana.

Sheriff Jason Frederick says only people who are trained and supervised should take part in the search near Wolf Point to preserve any evidence that might be found.

Authorities say a suspect is in custody, yet the child remains missing. The sheriff's office says John Lieba has been apprehended in Wolf Point.

Maci Lilley was reported missing at about 9:30 p.m. Friday in Wolf Point. The office says witnesses reported a man took the child from a park.

The FBI said Sunday no new information was available. Early Sunday, the Amber Alert was allowed to expire and a missing child report was issued.

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5:20 a.m.

Authorities say a suspect in the case of a 4-year-old girl who reportedly has been abducted on the Fort Peck Indian Reservation in Montana is in custody, yet the child remains missing.

The Roosevelt County Sheriff's Office says John Lieba has been apprehended in Wolf Point.

No other information has been released.

Maci Lilley was reported missing at about 9:30 p.m. Friday in Wolf Point. The office says witnesses reported a man took the child from a park where she had been playing.

Roosevelt County spokesman Lee Allmer says the FBI is leading the investigation. Early Sunday, the Amber Alert for the girl was allowed to expire, but the search for Maci continues.

The girl is described as about 3 feet tall and 60 pounds with short, dark hair. She was last seen wearing a pink coat, blue jeans, and pink and white shoes.