UPDATE  The Amber Alert for Sandy Moore has been cancelled. She was found safe in Casper, Wyoming.

The Montana Department of Justice has issued an Amber Alert for a missing 16 year-old girl from Sheridan, Montana, who may have been abducted, and could in en route to Boise, Idaho, or Billings, Montana.

The girl has been identified as Sandy Moore, She is a Caucasian, with brown hair and brown eyes, and is mentally delayed. Last seen wearing a white shirt with black, short sleeves. She wears glasses.

Amber Alert - Zahn

She could be in the company of 60 year-old Rodney Lee Zahn, a registered violent offender, who has violated his probation. He is 5 feet 7 inches tall with gray hair and brown eyes, He has a tattoo on his arm of the Tasmanian Devil and a tattoo of a cross on his left hand.

They could be traveling in a black, 1987 Ford Pickup with Montana license number 3-50558B with a white toolbox and a green bike in the back, hauling a tan and white 5th wheel trailer with a red generator and blue cover on the back of the trailer.

It is believed that Zahn took Sandy from her residence on Tuesday night.

Anyone with information on their whereabouts is asked to contact the Madison County Sheriff's Office at 406-843-5301, or call 9-1-1.