UPDATE: Hot Springs teen found safe
UPDATE (3:00 p.m.): Isaiah has been found safe.
Cox was wearing a black and white cap, bluish/gray tank top with a flannel shirt over it, and jeans. He was also carrying a large black backpack.
He has brown hair (longer than the attached picture), stands five-foot-nine and weighs around 130lbs.
Cox was driving a dark blue 2006 Toyota Sienna with South Dakota license plate 27B-629 (photo below).
Anyone with information on his whereabouts is asked to call Fall River County Dispatch at (605) 745-5155.