Knoxville, TN (WOKI) UPDATE: The Cumberland County man at the center of a TBI Silver Alert has been found safe.

The Tennessee Bureau of Investigation had issued the Silver Alert Monday morning for 51-year-old David Marshall who was last seen on Sunday near Red Road in Crossville.

Officials later reported that Marshall had been found safe in Crossville, TN.

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

The agency announcing Monday morning that 51-year-old David Marshall had gone missing and had last been seen on Sunday near Red Road in Crossville.

Marshall is 6 feet tall, 260 lbs. with gray hair and brown eyes. He was last seen wearing dark blue jogging pants and a gray t-shirt.

Authorities say Marshall also has a medical condition which may hinder his ability to get home safely without assistance.

Those with information are being asked to call 1-800-TBI-FIND.