Action is `` part of an investigative process , '' spokeswoman says . The other train , known as the `` Pink '' train , was operated by one of the employees who has since been placed on leave . Comment: Sunday morning crash of two trains killed one driver . NTSB is still investigating incident .
Action is `` part of an investigative process , '' spokeswoman says . Comment: Sunday morning crash of two trains killed one driver . NTSB is still investigating incident .