Emergency officials in Lake County, Fla., confirmed there were multiple injuries after a series of reported propane explosions rocked a gas plant.
Images showed a massive blast at a Blue Rhino plant in Tavares, about an hour north of Orlando. The explosions began at around 11:25 p.m. ET.
The Orlando Sentinel reports Tavares City Administrator John Drury says 10 of 24 people working at the propane-take business there were not immediately accounted for.
Lake County Sheriff Gary Borders said the explosion occurred inside the plant and blew the roof off.
One worker told CBS affiliate WKMG the force knocked him over. He said he could only see red and managed to find his way to a nearby gas station with other coworkers.
The loud booming sound brought Tavares residents out of their homes. "Shook my house and I live at least 4 miles away," tweeted Marc Strand, who took a picture of the flames and smoke. As of 12:45 p.m., he said blasts were still going off.
According to their website, Blue Rhino is a propane tank exchange brand, as well as a leading designer and marketer of barbecue grills, outdoor heaters, mosquito traps, and other outdoor appliances.
Video posted on YouTube by user BeautifullyAllured shows the explosion, with several loud "booms" coming one after the other.
This is a developing story.