Montville — State police issued a silver alert for a 15-year-old girl who is missing from Uncasville and classified as an endangered runaway.

Police said Ali Knowles has black hair and hazel eyes. She is 5'4" and 280 pounds. A description of her clothing is not known.

Police said she has been missing from Uncasville since Friday. If she is located, state police ask people to call the Troop E barracks in Montville at (860) 848-6500.