On Sunday, August 28, Canadian National Railway (CN) stopped all rail traffic on its lines south of McComb, Mississippi, (lines owned by its subsidiary Illinois Central Railroad that extend into New Orleans), expectating damage from the hurricane. To help continue services after the storm passes, CN also issued an embargo with the Association of American Railroads against all deliveries to points south of Osyka, Mississippi. CSX Transportation also suspended service south of Montgomery, Alabama until further notice.