Five firefighters were hurt when the backdraft from a six-alarm blaze set off a massive explosion at a New Jersey building Sunday afternoon, authorities said.
The injuries were not considered life-threatening, but one firefighter was severely cut by flying shards of glass after the explosion shattered a window at the Harrison, N.J., building, fire officials said.
"It sounded like a bomb went off, to be completely honest," said Captain Robert Gillen of the Harrison Fire Department.
Dramatic video footage recorded by a witness shows a monster fireball ripping through the two-story structure, masking adjoining buildings in a thick cloud of smoke.
"There was heavy, black smoke. Debris was thrown from the building. A couple firefighters were literally thrown out of the building because the explosion was so powerful," Gillen said.
There is much more to this story from NBC News, to read about it CLICK HERE.