Investigators probing why a New Jersey commuter train smashed into Hoboken station, killing one person and injuring 108, planned to interview more witnesses on Saturday as the site remained too dangerous to extract a second data recorder from the wreckage.
The Thursday morning rush hour crash left a 34-year-old woman on the platform dead and toppled support columns in the early 20th century building, a major transit point for New York City-bound commuters.
The damage to the columns has left the station unstable, and delayed the extraction of a data recorder and forward-facing video recorder that could help the National Transportation Safety Board understand the causes of the crash.
"We know where it is, it's just a matter of getting to it and that's kind of what today's site safety meeting was about," NTSB spokesman Christopher O'Neil said in a telephone interview. "Until the debris removal process starts we're not going to be able to access that lead car to get that other event recorder."
Another recorder was extracted from the train on Thursday and sent to its manufacturer on Friday after investigators were unable to download data off it.