Wagoner County Deputies have issued a Silver Alert for 88-year-old Jack Lathorp.
They say he was last seen Friday around noon in Wagoner.
Reports say he is wearing a dark colored plaid shirt and blue jeans with brown loafers.
He was driving a light blue 2008 Ford Focus with Oklahoma plate: BIU143, deputies say.
Reports say Lathorp has dementia and does not have his medication with him.