FOND DU LAC, Wis. - UPDATE: The Silver Alert has been canceled.
A Silver Alert has been issued for a missing 73-year-old man from Fond du Lac.
John C. Mason was last seen wearing black sweatpants, a red sweatshirt, green jacket and a baseball cap. He's also wearing eyeglasses, authorities said.
He is white, 5'8" and weighs about 238 pounds.
Mason left to go for a drive around 9:30 a.m. Thursday and is usually gone for an hour or less, however has not returned, according to the Silver Alert.
He is driving a 2007 green Toyota Camry with Wisconsin plates 744JVG.
If you see him, contact the Fond du Lac County Sheriff's Office at (920) 929-3390.