The Amtrak train that derailed in Philadelphia on Tuesday and a separate commuter train in the vicinity may have been hit by projectiles of some kind shortly before the wreck, a U.S. transportation official said Friday, after investigators interviewed members of the Amtrak crew.
But when questioned for the first time about the crash Tuesday night, the Amtrak engineer who was driving the train said he had no memory of anything that happened shortly before the wreck, which killed eight people and injured more than 200 others, said Robert Sumwalt, a member of the National Transportation Safety Board (NTSB).
The Federal Bureau of Investigation (FBI) was called in to examine a remnant of the Amtrak locomotive's shattered windshield with a circular damage pattern, Sumwalt said.