Smoke rises from the accident spot in Huixian County of northwest China's Gansu Province, May 13, 2008. A 40-car freight train, which included 12 tankers full of gasoline, derailed inside a tunnel and caught fire on Monday in northwest China following the southwest China earthquake, cutting the Baoji-Chengdu railway, officials said on Tuesday.
  Smoke rises from the accident spot in Huixian County of northwest China's Gansu Province, May 13, 2008.
  Mobile machinery trucks go to the accident spot in Huixian County of northwest China's Gansu Province, May 13, 2008. A 40-car freight train, which included 12 tankers full of gasoline, derailed inside a tunnel and caught fire on Monday in northwest China following the southwest China earthquake, cutting the Baoji-Chengdu railway, officials said on Tuesday.
  Smoke rises from the accident spot in Huixian County of northwest China's Gansu Province, May 13, 2008.     Rescuers gather at the railway station of Huixian County of northwest China's Gansu Province, May 13, 2008.