 Rail cars carrying hazardous materials have derailed a remote area of North Dakota. Emergency officials say no one was hurt in Friday's derailment. They also say the threat to those living nearby appears to be minimal. Twenty-nine cars of a CPKC train derailed about 3.45 in the morning. Cars were still burning more than 12 hours later. The North Dakota Department of Environmental Quality Spill Investigation Program manager says the cars were carrying anhydrous ammonia, sulfur, and methanol.