What happens when a fireworks factory explodes?

Stupid question. It's crazy.

It's basically hell on earth. Fire rains down from the heavens.

Well, a fireworks factory in Colombia exploded on Sunday, and a guy managed to get video of it.

The blast was so strong it knocked him over.

Luckily no one was killed, and only one person got injured even though there were five warehouses filled with gunpowder, The Washington Post and Caracol TV reported.