Interstate 24 East in Nashville has since reopened late Tuesday morning after an accident involving a pedestrian occurred in the early morning hours. The incident was reported around 6:40 a.m. along I-24 east at mile marker 55, about a half mile from the Harding Place exit. The roadway reopened around 9:30 a.m.Officials told Nashville's News 2 Johnny Potter Jr., who intentionally stepped into traffic, jumped over the concrete median when he was struck. Officials were unsure how many times Potter was hit. He remains in critical condition at Vanderbilt University Medical Center. Several drivers trying to avoid that incident were involved in secondary accidents.Three people inside a Nissan SUV that was also involved in the accident were transported to an area hospital with non-critical injuries. The Fatal Investigation team was called out to the scene to assist in the investigation. Eastbound traffic was affected for several hours while the roadway was closed. Motorists were re-routed to Briley Parkway while crews worked to clear the scene.