A woman died and more than 100 other people were hurt when an NJ Transit train crashed into the station in Hoboken at the height of Thursday's morning rush, leaving twisted piles of metal and cables and causing part of the highly trafficked terminal to collapse.

Sources familiar with the investigation said the woman who died was in her 30s and had been standing on the platform when train No. 1614 on the Pascack Valley Line barreled into the terminal at 8:45 a.m. She was from Hoboken and leaves behind a child, who was in daycare while her husband was out of town and she went to work.

Preliminary reports suggest the crash was either accidental or caused by operator error, according to five law enforcement officials. They stressed it was early in the investigation, though.