From Staff ReportsA rescue attempt is under way for eight people, including seven children, trapped on a roller coaster at an Oklahoma City amusement park. About 4:30 p.m., firefighters were call to Frontier City, 11501 N Interstate 35 Service Road, where the parkgoers were trapped on the Silver Bullet roller coaster, about 100 feet above the ground. Two people have already been retrieved from the ride, while firefighters work to rescue the other children, ages seven to 15 years old. Read more on NewsOK.com