UPDATE, 9 a.m. |The Clinton County Sheriff's Office says Stewart has been located and is safe.
EARLIER | The Clinton County Sheriff's Office has issued an Endangered Silver Advisory for 90-year-old Chester Stewart.
Stewart was last seen about noon Sunday at Cernech Road in Kansas City, Kansas.
The sheriff's office says Stewart left his home en route to a family member's house in Plattsburg, Missouri, but never arrived.
A location device in the vehicle has registered a possible location in Decatur, Iowa, the sheriff's office said.
He was driving a gray 2017 Toyota RAV4.
Stewart has dementia.
You should call 911 immediately if you see him.
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