Given the task definition and input, reply with output. In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

Twelve people were injured, including five who were seriously burned, when a propane tank on a food truck exploded, setting off "a very large fireball" Tuesday outside a Feltonville auto-body shop, police said. 
  
 A 42-year-old woman and her 18-year-old daughter who worked on the truck were among those critically wounded when it exploded near Third Street and Wyoming Avenue about 5:30 p.m., police said. 
  
 Both suffered third-degree burns over 50 percent of their bodies, said Police Chief Inspector Scott Small. 
  
 One of the females appeared to have been blown from the truck, witnesses said. 
  
 Three other victims who were standing near the truck - a 13-year-old girl and two men in their 20s - suffered serious burns and remained in critical condition, Small said. 
  
 The flames briefly engulfed several cars passing near the truck, Small said, causing seven more people to be treated for minor injuries. "They were mostly just shaken up," he said. 
  
 Two surveillance cameras from nearby businesses captured the moment of the blast, said Small, who viewed the tapes. 
  
 "It looks like a very large fireball that goes completely across the street," Small said. 
  
 The four-foot-high propane tank that exploded was one of two tanks positioned on the back of the truck, Small said. The blast was so powerful, he said, that the tank landed 150 feet away in a backyard. Other debris landed in an intersection nearly a block away, he said. Officials had not determined whether the blast was accidental or suspicious, Small said. 
  
 Fire marshals were investigating with police detectives and bomb-squad officers, Small said. 
  
 Luis Rivera, 23, said his Wyoming Avenue home shook from the blast. When he saw somebody running down the street, he ran out to follow. 
  
 "I thought it was a car accident - there are usually a lot on this street," he said. "Then I came outside and saw the lunch truck in flames." 
  
 A woman who worked on the truck lay on the sidewalk, badly burned and unconscious, Rivera said. Another woman with grave burns lay on the ground nearby, calling for help, he said. 
  
 Several neighbors, he said, were able to free two children from a car damaged in the blast. The children did not seem to be seriously hurt, he said, but were among those transported to the hospital. 
  
 Police did not identify any of the injured. 
  
 The truck parks on the street daily, residents said. Lettering on the side reads "Parrillada Chapina" and some in the neighborhood said the operators are Guatemalan. Chapin is a term commonly used by Guatemalans to refer to themselves. 
  
 "It's got a big clientele," said Carlos Miranda, who works in the area. "Everybody stops there. They're good people, very friendly." 
  
 Michael Blackie was on the next corner, he said, when the explosion made him miss a step. 
  
 The fire had spread to the auto lot, next to where the truck was parked, he said. 
  
 One female appeared to have been blown from the truck, he said. 
  
 "She was on the street behind the truck. I thought she was dead. She was burned," he said. "It was horrible." 
  
 Blackie said he lived on the same block as the truck owners. They were from Guatemala and "very hardworking." 
  
 SEPTA police appeared to be the first to respond to the blast, Blackie said. They used a blanket provided by a neighbor to move one of the burned females, he said. 
  
 Small said fire trucks were on the scene within three minutes. 
  
 By 6:13 p.m., almost 45 minutes after the explosion was reported, paramedics had transported all 10 victims to area hospitals. Initial police-radio reports indicated that for a time, the city had no available ambulances to send to the scene. 
  
 A Fire Department source said the lack of available ambulances did not affect the initial response to the blast, but caused some delays in getting help to the less seriously injured. 
  
 awhelan@philly.com 215-854-2961 @aubreyjwhelan ||||| PHILADELPHIA (AP) — A propane tank on a food truck in Philadelphia exploded into a fireball, critically injuring a mother and daughter and sending at least nine others to the hospital, police said. 
  
 The Philadelphia Police and Fire Department investigate the scene of a food truck explosion in the Northeast section of Philadelphia on Tuesday, July 1, 2014. A propane tank on a food truck exploded in... (Associated Press) 
  
 The Philadelphia Police and Fire Department investigate the scene of a food truck explosion in the Northeast section of Philadelphia on Tuesday, July 1, 2014. A propane tank on a food truck exploded in... (Associated Press) 
  
 The truck exploded Tuesday evening outside an auto body shop in the city's Feltonville neighborhood. 
  
 Philadelphia Police Chief Inspector Scott Small said the mother and daughter worked on the food truck and that they were in critical condition with burns across a substantial portion of their bodies. Two others were in the hospital in stable condition and about seven more people were treated and released. 
  
 Surveillance video from two businesses near the La Parrillada Chapina food truck captured the explosion, followed by a huge fireball that engulfed the truck and crossed to the other side of the street, Small said. 
  
 He said the four-foot propane tank that exploded, one of two that fuels the food truck, was found about 150 feet away in a residential backyard. 
  
 A utility pole on the other side of the street caught fire, but the fireball did not reach the homes across the street or businesses next to the truck. 
  
 Two cars driving by the explosion were briefly engulfed by flames, Small said, and five people inside were treated at area hospitals. 
  
 The city's fire department, along with police detectives and the bomb squad were investigating. 
  
 "We want to ensure that this was an accidental explosion. We want to ensure this wasn't anything criminal," Small said. "The bomb squad is investigating to see if there is any foul play. That will be the result of a completed investigation." 
  
 Jane Kim, the owner of a store next to the auto body shop, said that the food truck is parked outside daily. She said that she heard the explosion and was shaken by the incident. 
  
 "We thought something fell over. Then all of a sudden we heard screams," neighbor Nicole Ellis told WCAU-TV. "We walked outside and the truck was billowing fire." 
  
 Neighbor Luis Rivera told The Philadelphia Inquirer that his home across the street shook from the blast. 
  
 "I thought it was a car accident — there are usually a lot on this street," he said. "Then I came outside and saw the lunch truck in flames." |||||

Twelve people were hurt yesterday evening when a food truck in Philadelphia exploded in a blast so powerful its propane tank landed 150 feet away. A mother and daughter who worked on the La Parrillada Chapina truck were critically injured with third-degree burns over more than 50% of their bodies, reports the Philadelphia Inquirer. Three other people burned in the explosion are in critical condition, and seven others suffered less serious injuries when flames briefly engulfed their vehicles, police say. Surveillance video captured the moment the truck's propane tank exploded, creating a huge fireball that went all the way across the street, police say. The city's fire and police departments are investigating the blast. "We want to ensure that this was an accidental explosion. We want to ensure this wasn't anything criminal," a police spokesman tells the AP. "The bomb squad is investigating to see if there is any foul play."