U.S. authorities have raised the death toll to eight in the Amtrak derailment in Philadelphia which has left more than 200 people injured.
The investigation has so far found that the trains was 106 miles per hour at the time of the crash- but the driver claims he has no memory of the accident at all.
Philadelphia Fire Commissioner Derrick Sawyer says an eighth body pulled from the wreck was found by a dog.
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