Police in Fairhaven, Massachusetts, are looking for a missing 72-year-old man.
Authorities say Kenneth Parks was last seen shortly before 1:30 p.m. on Wednesday.
Parks is non-verbal with autism, police said. He was walking with a group of people near Cushman Park when they got separated.
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He is described as being about 6'2 and 260 pounds.
When he was last seen, Parks was wearing a black, puffy down jacket and grey sweatpants, police said.
Police in Fairhaven said Wednesday night that investigators in surrounding towns will be helping in the search, as will the Massachusetts State Police's Air Wing helicopter.
A ground search is expected to continue Thursday morning, police said.
Anyone with information is asked to call 508-997-7421.