VISTA, Calif. — The San Diego County Sheriff’s Department is asking for the public’s help in locating a missing at-risk man.

Alin Ramon Cox, 59, was last seen Thursday wearing a blue hoodie, blue pants/shoes, carrying a burgundy/pink backpack and using a cane in the city of Vista, authorities tweeted.

Cox, who has red hair and green eyes, is 6 feet 2 inches and 205 pounds. He is diagnosed with severe dementia, schizophrenia and has short-term memory loss.

According to Sgt. Brian Simpson, Cox left the Vista Family Health Center and possibly walked towards the North County Transit District bus stop in the 700 block of South Santa Fe at around 3:30 p.m. Later that night, at around 10:45 p.m., a bus driver dropped off a person matching Cox’s description near Rock Springs Road and Mission Avenue in Escondido.

If anyone finds Cox, they are asked to please call the Sheriff’s Department’s non-emergency line at (858) 565-5200 or the Vista Station at (760) 940-4551.