DICKSON, Tenn. (WKRN) -- The Tennessee Bureau of Investigation issued a Silver Alert on behalf of the Dickson Police Department Saturday afternoon for a woman who hasn't been seen in almost a week.

Authorities said 88-year-old Joann McWilliams was last seen in Dickson on Sunday, Oct. 5. She may be traveling in a white 2020 Buick Encore Sport with Tennessee tag 115BDWT.

The TBI described McWilliams as 5-feet 4-inches tall and 140 pounds with brown eyes and brown hair, even though her hair color is different in the photo provided.

According to officials, McWilliams has a medical condition that may impair her ability to return safely without help.

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If you see McWilliams or have any information regarding her whereabouts, you're asked to call Detective

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