Authorities in Spring Hill are asking for the public's assistance in locating a runaway teen. Police said 15-year-old Cassidy "Caddy" Underwood fled her Meadowbrook subdivision home with her boyfriend, 20-year-old Pedro Diaz. Officers were unable to locate the pair after conducting a search of the area near Underwood's home. Police believe the two could be in Columbia. Underwood is five feet, eight inches tall and weighs 180 pounds. She has brown eyes and black hair. Diaz is five feet, 10 inches tall and weighs 200 pounds. He has brown hair and eyes. Anyone with information on their whereabouts should call police at 931-388-2727.