UPDATE: A missing Minnesota woman who was believed to have been spotted in Iowa, was found dead by authorities in Minnesota.
The Kanabec County Sheriff's Office in Minnesota confirmed that 80-year-old Andrea "Andi" Nyberg was found dead near Cambridge, MN "well off the roadway in an unharvested cornfield making her vehicle difficult to find."
A possible sighting of Nyberg in Hudson, Iowa circulated on social media earlier Monday, but that has since been confirmed false.
Before she was declared missing, Nyberg was last seen driving a red 2004 Buick LeSabre last Friday in Mora, Minnesota. Her family said she has some level of dementia.