The South Jersey Times cites the Gloucester County Freeholder director Robert Damminger - a local official - who confirmed that at least one of the carriages contained vinyl chloride.
It also quote county officials as saying that an environmental clean-up firm is attempting to place booms in the waterway to contain the spill.
More top news
A former Fox employee has died after apparently shooting himself outside the front doors of the News Corporation building.
French courts have forbidden two sets of parents from naming their two, unrelated, daughters Nutella and Strawberry.
A video has been posted online by students at Nottingham Trent University showing an alleged intruder stuck in a window of a building.