The accident, the second in less than a year on the same busy rail line, was one of the deadliest in the country’s history.

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Fernando Seco, 62, said he and others moved at least a dozen wounded passengers from the crash site, using parts of the wreckage as makeshift stretchers.

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A coaster dares riders to be daring, with steep drops, high speeds and improbably tight curves. But safety has become a concern again after a man was thrown from his seat and died in Georgia.

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Regulation of amusement parks is left to the states, and deaths are rare. But some say stronger rules are needed.

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