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.

ORLAND, Calif. -- The investigation into the fatal bus crash in Northern California took a new twist after two witnesses said the FedEx truck was on fire before it hit the tour bus filled with high school students. 
  
 The witnesses said flames were visible from the big rig as it crossed the grassy median on Interstate 5 and hit their car, then the bus. 
  
 Bonnie and Joe Duran told TV reporters in Northern California that their Nissan Altima sideswiped by the truck before it collided head-on with the bus. 
  
 “It was on fire already,” Bonnie Duran said. 
  
 PHOTOS: Deadly bus crash 
  
 Investigators have not publicly responded the Durans' account. 
  
 Experts say the probe will be broad and could take months. 
  
 "This is a very significant and unfortunate tragedy," said Jim Hall, a transportation safety consultant and former chairman of the National Transportation Safety Board. "The NTSB is going to have its hands full on this one." 
  
 Although the cause of the accident has yet to be determined, Hall and other safety advocates said it could focus new attention on the NTSB's efforts to improve bus safety and the behind-the-scenes battle over safety standards for motor coaches and other commercial vehicles. 
  
 NTSB officials, who arrived at the crash site Friday morning, will look into the condition of the vehicles involved, the safety of the highway, the records of both carriers, the truck driver's health and whether he was fatigued due to his work schedule or other factors. 
  
 Investigators said they would try to recover electronic modules from the FedEx truck that might have recorded the vehicle's performance. Authorities added they will employ "sophisticated surveying and mapping equipment," along with 3-D diagramming, to reconstruct the crash and what led up to it. 
  
 At a news conference earlier Friday, federal traffic safety investigators said they would be paying special attention to fire safety issues as well as whether crash victims were able to escape from the burning motor coach. 
  
 Students in the bus have said riders broke windows to escape the fire. 
  
 “The worst thing for the NTSB is to show up, know that we’ve issued recommendations from a previous accident where lives have been lost … and find out [that] if those recommendations had been closed and enacted, lives could have been saved,” said Michael Rosekind, an NTSB board member who traveled with the investigation team to Orland. 
  
 He said he expected investigators to remain in the area for one to two weeks, gathering not just physical evidence but seeking out potential witnesses to the crash. 
  
 Rosekind cautioned that the federal agency is only beginning its work and has few answers at this point about what happened. 
  
 “While on scene, we will not be determining a probable cause or speculating about the probable cause of this accident,” he said. He pointed out that there was no hard barrier between the opposing lanes of the freeway. 
  
 Those are required only if lanes are within 50 feet of each other. The interstate lanes where the accident occurred were 60 feet apart, making barriers optionaly. 
  
 Five students and five adults, including both drivers, were killed and more than 30 people were injured when the southbound FedEx truck crossed the median and hit the bus head-on late Thursday afternoon, officials said. Both vehicles were consumed in flames. 
  
 Glenn County Sheriff Larry Jones said some of the victims were so badly burned that it would take medical and dental records to positively identify them. 
  
 The bus was one of three in a caravan carrying students to visit the campus of Humboldt State University; two originated from Union Station in downtown Los Angeles and the third from Fresno. 
  
 Interactive: The dead and unaccounted for 
  
 It was not immediately clear which Los Angeles-area students were on which bus. 
  
 Students on the two buses from Los Angeles were supposed to be divided into two groups: last names beginning with the letters A to L on one bus, M to Z on another, Humboldt State spokesman Frank Whitlatch said. But the teenagers "did what 17-year-olds do," and switched vehicles to sit with their friends. 
  
 Only one victim -- Arthur Arzola, a 26-year-old Humboldt advisor -- has been positively identified by coroner's officials. Relatives and school officials have identified a few of the others who have not been accounted for. 
  
 At Norte Vista High School in Riverside, a cloud hung over students preparing for prom night as they worried about the whereabouts of classmate Marisa Serrato, whose family told reporters she has been missing since the crash. 
  
 Marisa and her twin sister, Marisol, both seniors, chose to skip the dance to visit Humboldt State University, said a classmate who gave only his first name, Elmer. 
  
 "We just don't know if they've found her," Elmer said. 
  
 ALSO: 
  
 Bus crash survivor recounts harrowing escape 
  
 California bus crash: 5 students among 10 killed; at least 30 injured 
  
 Aspiring TV producer mistakenly shot to death by deputies in West Hollywood 
  
 kate.mather@latimes.com 
  
 paige.stjohn@latimes.com 
  
 ruben.vives@latimes.com 
  
 St. John reported from Orland, Mather and Vives from Los Angeles. 
  
  ||||| ORLAND (CBS13) — Fresh out of the hospital, Bonnie and Joe Duran came back, drawn to the spot where they almost lost their lives in a deadly crash between a tour bus and a FedEx truck. 
  
 “Somehow we survived,” said Bonnie Duran. “I looked over and saw the FedEx truck coming straight for me.” 
  
 “It was like a 3-D movie,” said Joe Duran. “Imagine a Mack truck coming out of a movie.” 
  
 The FedEx truck was heading south on Interstate 5 when it veered across the median. Though some buses into the northbound lanes. The truck clipped the Durans’ car before hitting a tour bus head-on. 
  
 Orland Bus Crash News 
  
 “I could tell I wasn’t going to get out of his way,” said Bonnie Duran. “It was pretty scary.” 
  
 She swerved just enough to avoid a direct hit as their rental car slid into a ditch. 
  
 “We looked at each other and what did you say?” Joe Duran said. 
  
 “I just said we’re alive. We’re alive,” Bonnie Duran said. “Man it was unreal.” 
  
 Moments later the Washington couple says the bus carrying more than 40 high-school students from Los Angeles County burst into flames. 
  
 “Three booms,” said Joe Duran. “Like a big huge boom, and another one and somebody said you could hear tires popping.” 
  
 The accident killed 10 people, including five students, three chaperones and the FedEx and tour bus drivers. 
  
 Investigators say it’s unclear why the FedEx driver lost control. They’re looking into whether he fell asleep or swerved to avoid another collision, or had a mechanical problem. 
  
 But the Durans told us something so startling we had to ask twice: Bonnie Duran says she’s sure the FedEx truck careening toward her was already on fire before it ever hit the bus. 
  
 It could shed light on a crash investigation expected to take months. 
  
 “It was so scary,” Bonnie Duran said. “We were wondering if anyone was going to get out of there alive.” ||||| A couple who was inside the Nissan Altima struck during the deadly Northern California bus crash said the FedEx big rig was already up in flames when it struck the charter bus carrying Southern California high school students. Patrick Healy reports for the NBC4 News at 11 p.m. on Friday, April 11, 2014. 
  
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 The couple inside the Nissan Altima who watched the deadly Northern California bus crash said the FedEx truck was already up in flames when it crossed lanes and struck the tour bus head-on. 
  
 "It was in flames as it came through the median," Bonnie Duran said, "It was already in flames. It wasn’t coming from the front engine, it was more from behind the cab." 
  
 Bonnie and Joe Duran were driving back to home to the Seattle-area at the time of the crash. They were driving in front of the charter bus. 
  
 The crash occurred about 5:40 p.m. Thursday on Interstate 5 near Orland, when a FedEx truck crossed a 60-foot median and hit a Duran's Nissan Altima and a charter bus carrying dozens of Southern California high school students. 
  
 "Look to the left and there it was, coming through right at me at an angle and I could tell I wasn’t going to outrun him so I just kind of turned to the right and he hit me just like that," Bonnie Duran said. 
  
 The truck hit the front door of Duran's Altima and then ripped off the back door and the back trunk, Joe Duran said. 
  
 "You just think, 'I’m dead, I’m dead.' And when it swiped us it felt like we floated, we kind of just floated right off to the ditch," Joe Duran said. "We looked at eachother, literally at the same time we go 'we’re alive!" 
  
 The pair was expected to interview with California Highway Patrol officials on Saturday. Their account differs from other statements by the CHP that the blaze erupted after the FedEx truck collided with the bus. 
  
 Nine people died at the scene of Thursday's crash, and a 10th victim died at a hospital, California Highway Patrol officials said early Friday. 
  
 Those killed included five students and five adults who were traveling to Humboldt State University for a campus visit. |||||

A woman who had what may be the best view of a FedEx truck before it smashed into a bus insists on a jarring detail—the truck was already on fire before the accident. "It was in flames as it came through the median," Bonnie Duran tells KNBC-TV. "It was already in flames. It wasn’t coming from the front engine, it was more from behind the cab." Duran was driving a Nissan Altima that the FedEx truck hit before colliding head-on with the tour bus. The Nissan ended up in a ditch, but Duran and husband Joe emerged relatively unscathed. “It was like a 3-D movie,” Joe Duran tells CBS Sacramento. “Imagine a Mack truck coming out of a movie.” The account of the truck being on fire before the crash conflicts with early reports that the two vehicles burst into flames upon impact. Investigators have said it could take months to determine what caused the crash, given the extent of the fire damage, notes the LA Times. Among the 10 people killed was a 17-year-old high school senior whose identical twin was riding in a separate bus.