LAKE ELSINORE (  —  Authorities are hoping the public can lead them to a missing at-risk 83-year-old woman.

Donna Jean Ransdell was last seen — and reportedly disoriented — around 7:30 this morning. Prior to this morning, she was last seen Monday evening near her home in Lake Elsinore.

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Ransdell suffers from dementia. The missing woman is a white, 5 foot 3 inches tall and 120 pounds. She has gray hair, green eyes, wearing unknown-type clothing.

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Officers learned Ransdell left her home in a red 2007 Ford Fusion, with a California license plate of 6AQX132.

Around  7:30 a.m. Thursday detectives learned Ransdell had been seen on Summit Avenue in Fontana where she purchased some food, appeared disoriented and asked for directions to Lake Elsinore. A Silver Alert was requested by the Riverside County Sheriff’s Department, and issued by the California Highway Patrol.

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The Lake Elsinore Police Department is asking for the public’s help in locating Ransdell. If you have seen her, please call the Riverside County Sheriff’s Department at (951) 776-1099.