Riders Stuck 100 Feet in Air on Stalled RollercoasterEmergency crews were called to Frontier City Park in Oklahoma after a rollercoaster stalled 100 feet in the air.Riders Stuck 100 Feet in Air on Stalled Rollercoaster01:14PrintJune 30, 2016, 12:06 AM UTC / Updated June 30, 2016, 12:06 AM UTC