PARMA, Ohio -- Fire officials tell WKYC at least one person was hurt in an explosion at ABF Freight in Parma.

Officials say a propane natural has truck was filling portable tanks around 11:15 a.m. when a fire broke out, causing several of the tanks to explode. Crews were able to extinguish the fire before it spread to the building.

The man who was hurt was burned on his face and arms, and was taken to MetroHealth Medical Center.

It is still unknown what caused the fire, although authorities believe it to be accidental.