Updated: Lockhart has been located and is safe.
A Silver Alert has been issued for a man reported missing in Clarksville.
Police say 74-year old Donald Lockhart was last seen at a home in Clarksville Friday night about 7 p.m. and he has medical conditions that may impair his ability to return safely without assistance.
He is a white male standing about 5-9 and weighing approximately 180-200 lbs.
Anyone knowing his whereabouts should call Clarksville police at 931-648-0656.