A missing 4-year-old girl was discovered alive on Sunday, two days after she was reportedly kidnapped from an Indian reservation, a Montana sheriff’s spokesperson told the Associated Press.

Maci Lilley was reported missing Friday from the Fort Peck Indian Reservation in Wolf Point. Authorities said a suspect in the abduction, 20 -year-old John Lieba, has been taken into custody.

Lilley was undergoing a medical exam on Sunday, Roosevelt County spokesman Lee Allmer said. The girl was found by Undersheriff Corey Reum a few miles north of Wolf Point, the town where she was last seen.

“She was found apparently in good health, ” Allmer said. “We’re not disclosing the location. The investigation is still active.”

The FBI was in charge of the investigation into the kidnapping.

Other bureaux involved in the search included Border Patrol, the Montana Highway Patrol, the Wolf Point Police Department, tribal police, Bureau of Indian Affairs Criminal Investigators and other agencies.

The search included military and private aircraft.

Authorities said witnesses reported a human took the child from a park where she had been playing around 9:30 p.m. Friday.

An Amber Alert was issued Saturday morning.

Maci is 3 feet tall, 60 pounds, Native American, with brown eyes and brown hair, The Missoulian reported. She was last insured wearing a pink coat, blue jeans, pink and white shoes, and has short hair with long bangs.

The Associated Press contributed to this report .

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