Astana. May 30. Kazakhstan Today - The main reason of all explosions in Arcelor Mittal Temirtau mines was ignoring of requirements of provision of safe labor conditions and accident prevention. The official representative of General Prosecution Saparbek Nurpeisov informed today at the press conference in Astana on Thursday, the agency reports. "For the last 4 years 94 Kazakhstan citizens died in Arcelor Mittal Temirtau mines as a result of three methane explosions. The inspection established that the main reason of all explosions was ignoring of requirements of maintenance of safe labor conditions and accident prevention," S. Nurpeisov said.