Knoxville, TN (WOKI) UPDATE 8/20 3:00 p.m.: A Knox County man at the center of a TBI Silver Alert this week has been found.

Officials with the Tennessee Bureau of Investigation Wednesday afternoon announcing that 84-year-old John Quirk was found safe in Texas.

A prior update from the agency stated that Quirk’s vehicle, a silver 1997 Toyota RAV4 with a Nevada tag, had been spotted Tuesday evening in Kingsbury, Texas.

UPDATE 8/20: A Knox County man at the center of a TBI Silver Alert may be traveling through Texas.

That’s the latest from officials with the Tennessee Bureau of Investigation in the search for 84-year-old John Quirk.

TBI says Quirk, who has a medical condition that may impair his ability to return safely without assistance, is believed to be driving a silver 1997 Toyota RAV4 with a Nevada tag. Officials say that vehicle was spotted Tuesday evening in Kingsbury, Texas.

Those with information are being asked to call the Knox County Sheriff’s Office at 865-215-2243 or the TBI at 1-800-TBI-FIND.

ORIGINAL STORY: The Tennessee Bureau of Investigation has issued a Silver Alert for a missing Knox County man.

TBI says 84-year-old John Quirk is six feet tall, 160 lbs., with gray hair and blue eyes. Officials say Quirk is believed to be driving a silver 1997 Toyota RAV4 with Nevada tag 459TXL and that he may be traveling through Alabama.

Quirk also has a medical condition that may impair his ability to return safely without assistance.

Those with information are being asked to call the Knox County Sheriff’s Office at 865-215-2243 or the TBI at 1-800-TBI-FIND.