Ralph Hergert, 66, was last seen at about 5:30 p.m. Sunday when he left his home at 9 St. James Ave. to take a walk, police said. He is described as about 5' 9" and 200 lbs with gray hair and blue eyes. He was last wearing a red and blue plaid shirt, grey shorts and sandals. Hergert suffers from Alzheimer's disease.
He often walks on main streets in Somerville, Medford and Cambridge. Police received a report Monday morning that Hergert may have been spotted in Kendall Square Sunday night, Deputy police Chief Paul Upton said.
Police are asking that anyone that may have seen Hergert call Somerville Police at (617) 625-1212.