(KMZA)--A statewide Silver Alert has been issued for a missing 72-year-old Marysville man.

The Marshall County Sheriff’s Office requested that the Kansas Bureau of Investigation issue the alert for James " Jim " Knecht.
 
The KBI said the whereabouts of Knecht are unknown, and the public’s assistance is requested to help locate him.
 
Knecht left his home Tuesday morning, Dec.7, at around 8:30, and was last seen at about  10 a.m. at the C.J. East gas station along Highway 36 in Marysville.

Knecht is driving a blue 2002 Buick Century with Kansas tag 240NEX. He may be traveling toward Iowa.
 
Knecht has dementia, and takes medication that he does not have with him.
 
Knecht is a white male, about 6 ft. 1 in. tall, and weighing 280 lbs. He has blue eyes and is bald. He has a red birthmark on his forehead. Knecht was last known wearing a black zip-up jacket and blue jeans.
 
If you see Jim Knecht, or his vehicle, please call 911 immediately. If you have other information about his whereabouts, please call the Marshall County Sheriff’s Office at 785-562-3141.