[PHOTO UPDATE] Missing 'At Risk' Man Last Seen in Half Moon Bay: Sheriff's Office

HALF MOON BAY, CA- The sheriff's office is asking for the public's help in finding a man described as "at risk" who was last seen in Half Moon Bay on Wednesday morning.

Sheriff's officials said in an emailed alert that 67-year-old Jack Spencer was last seen in the area of Main and Poplar streets in Half Moon Bay, at around 9:30 a.m.

"He is at risk due to medical conditions," the agency said.

Police say Spencer may have hitched a ride in a red SUV. A photo of the man is attached, and he's described as a 6 foot man with gray hair. He weighs an estimated 275 pounds.

Anyone who may have information on his whereabouts was asked to call 911 or 650-726-8286.