BLACK HAWK, S.D. (AP) — Canadian Pacific Railway says there is no indication that a bridge failure caused a derailment west of Rapid City near Black Hawk.

Thirteen or 14 cars derailed Thursday afternoon, and local law enforcement officials say a bridge collapsed.

CP officials say they're continuing to investigate the cause of the wreck, but that a preliminary review shows the integrity of the bridge is unrelated to the cause.

No one was hurt in the mishap.

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