Silver Alert: Man was last seen driving maroon Buick in West Fort Worth

Fort Worth police are asking for the public’s help finding a missing elderly man.

Authorities issued a Silver Alert for 80-year-old John Clark Keller, who was last seen about 10:45 a.m. Friday driving in the 5700 block of Edwards Ranch Road, near Bryant Irvin Road in West Fort Worth.

Keller is described as a white man who is 6-4 and about 240 pounds, with gray hair and brown eyes. He was last seen wearing a green shirt and blue jeans.

He was driving a maroon 2014 Buick Enclave with Texas license plate JSV-4100.

Keller has a cognitive impairment and his disappearance poses a threat to his health and safety, authorities said.