Action is `` part of an investigative process , '' spokeswoman says . Workers are maintenance shop member , pilot and transportation manager . several days morning crash of one trains killed two driver . The other train , known as the `` Pink '' train , was operated by one of the employees who has since been placed on leave . The National Transportation Safety Board is still investigating incident .
Action is `` part of an investigative process , '' spokeswoman says . Workers are maintenance shop member , pilot and transportation manager . several days morning crash of one trains killed two driver . The National Transportation Safety Board is still investigating incident .