Look at this tonight from florida, the remains of a gas plant decimated last night by an explosion so powerful it melted delivery trucks, unleashed a fire ball 200 feet high and injured at least 28... See More
Look at this tonight from florida, the remains of a gas plant decimated last night by an explosion so powerful it melted delivery trucks, unleashed a fire ball 200 feet high and injured at least 28 workers outside a small town and families are still rattled tonight. Here's abc's steven osunsami. Reporter: To families nearby who could hear the explosions, it sounded like someone was popping giant metal popcorn. You can tell it was metal because of the sparks. It was like glitter in the sky. Reporter: When you are hearing in the video from early this morning are 20 pound propane canisters that were on fire and exploding. More than 53,000 of them produced at this plant and familiar to anyone who has ever used a back yard grill. Lisa huff recorded video. See it blowing up? I thought something ran into my house like a mack truck. You thought a mack truck hit your house? I did. Or we were under terror attack. Reporter: Workers had to be rushed to the closest hospitals, five of them tonight fighting for their lives. Firefighters trying to put down the flames were beaten by these canisters that turned into the rockets. The fles so hot they melted cars. In 36 years of the fire service I've severe nen anything like this. Reporter: Across the country nearly 13,000 other industrial facilities the government says are potentially hazardous. In florida there are 231 petroleum gas dealers like this one. Investigators here believe this was an accident. Steven osunsami abc news.
This transcript has been automatically generated and may not be 100% accurate.