The propane tank of a food truck in Philadelphia exploded on Tuesday, severely burning one woman and injuring at least nine others. The woman, who is 25 years old, suffered second and third-degree burns to her entire body while others who were walking by the truck when it exploded also suffered burns from the ignited propane. At least two people were inside the La Parrillada Chapina truck when it exploded. "I heard a loud boom like a bomb," one witness told NBC Philadelphia. "So I turned around and this truck just started instantly smoking. The propane splashed all the way across the street on a pole. That's why the pole was on fire and people that were walking by got burned. A lady got burned on her back. Another lady got burned on her face. It was just the sounds of the screams. There was a good two minutes of screams before the cops even came."