Hundreds of firefighters battled a four-alarm fire in Queens Saturday.
It broke out around 11 a.m. on the first floor of a five-story commercial building at 37-01 31st Street in Astoria.
Fire officials say combustible materials in the building, such as paints and wood, created an explosion and the second floor collapsed.
Some workers on the third floor were able escape by climbing down a ladder.
Fire officials say while everyone made it out safely, six employees were injured and at least four firefighters with minor injuries were taken to the hospital.
Officials were still investigating Saturday night what caused the fire.
Four-Alarm Queens Fire Injures At Least 10
I can't imagine why this happened. I'm sure everything at this worksite was strictly kosher and up to code and that the sprinklers were working. This building has a spotless record.
According to Fox 5, "The fire was apparently sparked by construction workers making repairs inside the building."