Seminole County deputies are searching for a missing disabled woman.

Deputies said Sheila Ann Case, 53, who is mentally disabled, was last seen leaving her home in Lake Mary on foot around 2 p.m. Friday. 

Deputies said her son called her at 4:30 p.m. to see where she was and that Case indicated she would not be returning and shut off her phone. 

Anyone with information on her whereabouts is asked to call the Seminole County Sheriff's Office at 407-665-6650.