SEATTLE (AP) – Federal safety investigators say a deadly Amtrak train derailment in Washington state happened because the engineer lost track of where he was on the route and was going more than twice the speed limit when he hit a curve.

The National Transportation Safety Board announced the findings Tuesday at a meeting in Washington, D.C.

The News Tribune reports investigators also blamed Sound Transit for not sufficiently mitigating the danger of the sharp bend, Amtrak for not better training the engineer, Washington State Department of Transportation for not ensuring the route was safe before green-lighting a passenger train and the Federal Railroad Administration for using rail cars beneath regulatory standards.

The train derailed in December 2017 near DuPont, Washington, killing three and injuring dozens.

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