2023 Ohio train derailment operator Norfolk Southern Corporation
A train derailment occurred on February 3, 2023, at 8:55 p.m. EST (UTC−5), when 38 cars of a Norfolk Southern freight train carrying hazardous materials derailed in East Palestine, Ohio, United States. Several railcars burned for more than two days, with emergency crews then conducting a controlled burn of several railcars which released hydrogen chloride and phosgene into the air. As a result, residents within a 1-mile (1.6-kilometer) radius were evacuated, and an emergency response was initiated from agencies in Ohio, Pennsylvania, and West Virginia.Background
The derailed train was Norfolk Southern train 32N operating from the Terminal Railroad Association of St. Louis yard in Madison, Illinois, to Norfolk Southern's Conway Yard in Conway, Pennsylvania, on the Fort Wayne Line. Aboard the 9,300-foot-long (1.76 mi; 2.8 km) train were an engineer, conductor, and conductor trainee. The train consisted of 141 loaded cars and 9 empty cars. Other reports note one more car, for a total of 151 cars, weighing 18,000 tons. 
Of those cars, 20 were carrying hazardous materials, including chloroethene (vinyl chloride), butyl acrylate, 2-ethylhexyl acrylate, ethylene glycol monobutyl ether, isobutylene, combustible liquids, and benzene residue. The train departed Madison on February 1, and had suffered at least one mechanical failure before the derailment.
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