One worker was killed in a fire…at the Viskoza Chemical Factory in the…Serbian town of Loznica…Safety and Rescue officials from the Interior Ministry…have yet to give any leads as to what could have been the cause of the fire…Though the factory has not been operational for some time, it is still used to store hazardous materials…Environmental protection inspectors confirmed that the air’s sulphur dioxide content in the vicinity of the factory was seven times higher than is permissible…[T]hree [workers] were treated for minor injuries.