ATLANTA -- Debris under a railroad trestle east of Cheshire Bridge between Lenox Rd. caught fire Thursday morning.

According to CSX, a call was made by Atlanta Police just after 7 a.m. this morning for reports of a bridge fire. The fire was on the railroad over pass over Lenox Road. Atlanta firefighters arrived and extinguished the fire within an hour.

"CSX greatly appreciates their swift response which prevented the fire from spreading," Media relations manager Laura Phelps said.

CSX bridge inspectors and engineering experts found no structural damage during an inspection and released the line for normal train operations to resume.

Photos | Fire under train bridge

Large plumes of smoke are rising from under the train tracks. Firefighters had to run along hose from a fire hydrant on Lenox Road all the way down under the tracks.

The railroad tracks belong to CSX. A neighbor told 11Alive's Jerry Carnes homeless people sometimes camp out around that area but it is not clear when the fire started.