HENDERSON, Ky. (WEHT ) – Firefighters were dispatched to Tri-State Resource Recovery in Evansville on Friday just after 7 a.m..

According to a release, employees noticed smoke coming from a pile of cardboard removed layers of the cardboard with their equipment. Officials say when the layers were removed, the smoldering pile burst into flames.

Firefighters arriving at the scene reported flames showing, and began extinguishing hte fire in a large pile of cardboard. Firefighters were on the scene for around 3 hours while they ventilated smoke from the structure.

There were no injuries reported and officials say there was no structural damage. The fire is currently under investigation, but Division Chief Mike Larson said it is likely it will be classified as undetermined due to the amount of materials that were moved while competing extinguishment.