Whitewater Twp. chemical leak: Evacuation orders remain in place as crews work overnight following chemical leak  WLWT CincinnatiOhio train chemical leak causes evacuation orders  NBC NewsOfficials: Evacuation still in place, roads closed after styrene leak in Cleves, Whitewater Twp.  WCPO 9 CincinnatiChemical Leak From Rail Yard Near Cincinnati Prompts Evacuations  The New York TimesDangerous chemical leak spurs evacuation order in Ohio town  The Associated Press