Siblings missing overnight in rugged western North Carolina mountains have been located.

Officials said the children were located Thursday in the Roan Mountain section of national forest lands in Mitchell County on the Tennessee border. The children are from Kingsport, Tenn., and were hiking with their parents when they disappeared a day earlier.

The U.S. Forest Service said a child's shoe was found about a mile from where the brother and sister last were seen, leading searchers to the children.

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An Amber Alert has been issued for two missing children in North Carolina.

The alert comes from Mitchell County, which is along the state border with Tennessee. The missing children are Alexander Lee Suddeath and Heidi Elizabeth Suddeath.

The two were last seen on Roan Mountain in Mitchell County. The alert says the Suddeaths lost sight of the children while returning to a public parking lot on the mountain.

The alert describes Alexander as a 6-year-old white male, approximately 4 feet 7 inches tall, weighing 55 pounds. He has sandy brown hair, and brown eyes. He was last seen wearing a yellow t-shirt, navy blue shorts and croc shoes He has a scar on the right eyebrow.

The alert describes Heidi as a 4-year-old white female, approximately 3 feet 3 inches tall, weighing 38 pounds. She has light brown hair and brown eyes. She was last seen wearing a pink skirt, a purple shirt and crocs. She has a scab on her right elbow.