(Montgomery,TX) -- An AMBER Alert is in effect for a missing teen from Montgomery. Police say 13-year-old Kiah Miller is in grave or immediate danger after leaving home early Monday morning and getting into a car with 61-year-old Leola Morris. Officers are also searching for Morris, who is black, five-foot-six, 162 pounds, and reportedly has one leg. Kiah is black, five-foot-seven, and 110 pounds. Morris was last seen driving a gray 2012 Nissan Altima with an Oklahoma license plate. Anyone with information is asked to call the Montgomery Police at 939-760-5800.