UPDATE | KCPD said Wednesday that Griffin had been found and is safe.
PREVIOUS | Kansas City, Missouri, police have issued an Endangered Silver Alert for a missing 66-year-old man.
Nathaniel Griffin was last seen on Feb. 19 at East 19th Street and Forest Avenue in Kansas City, Missouri, police said.
Griffin was near the Forest Avenue Church when last seen.
Police said he is 5 feet 11 inches tall and weighs 160 pounds. He has gray hair and brown eyes.
Griffin was wearing a beige hat, a white shirt, khaki pants and gray tennis shoes.
He has been diagnosed with dementia, seizures and anxiety, according to police, and needs his medications.
Anyone with information should call 911.