(July 5, 2023, 1:18 PM EDT) -- YOUNGSTOWN, Ohio — Norfolk Southern Railway Co. filed a third-party complaint in Ohio federal court against chemical companies and railcar companies seeking contribution for expenses related to remediating chemical contamination caused by the train derailment in East Palestine, Ohio, which released vinyl chloride and other toxins. Norfolk Southern maintains that railcar owners and shippers are responsible for the chemicals released in the derailment....