Ferguson was last seen wearing gray pants and a black shirt and driving a gray 2009 Honda Accord with Georgia tag RMZ5773, police said. She has ties to people living in Ohio and California.

According to her family, the 77-year-old has no known medical issues, Sandy Springs police Sgt. Salvador Ortega said Wednesday.

Her daughter has 940,000 followers on Instagram and has posted several photos and videos in recent days. None of the posts mentioned her missing mother until Wednesday evening, when Whitfield asked her fans to keep her mother and family in their prayers.

“I was hesitant to post my concerns for my mother's safe return because, although I have been in close contact with the police for the past two weeks, I'm also pretty private when it comes to my family,” she wrote. “Also, in the past, my mom has taken personal vacations without letting the family know and we respect that side of her. However, this is the longest she have gone without reaching out to anyone from the family or her friends. Right now we are leaning on God and staying positive and prayerful for her safe return home.”

Whitfield did not return calls requesting comment Wednesday afternoon.

Anyone who sees Ferguson or knows her whereabouts is asked to call Sandy Springs police at 770-551-6923 or email the detective handling the missing persons case at rgehricke@sandyspringsga.gov.

— Staff writer Rodney Ho contributed to this article.

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