Huge train wreck

Mainichi Shimbun article
Japan Times article

This is just frightening. Apparently, this train was running behind, due to overshooting a previous station by eight meters and having to back up. So, it seems that the driver was going a little too fast, trying to get back on schedule. He hit a curve too fast, and four cars derailed. (There was an early report of a car on the tracks, but that seems unlikely, considering the location.) The 23 year old driver, who had been working for JR for 11 months, spent hours trapped in the crushed first car, and currently is in critical condition. (UPDATE: According to the Japan Times, he has not been found in the wreckage yet.)

The train smashed into an apartment building. (pictures) One of the cars actually looks smashed flat and wrapped around the corner of the building...

JapanRail is falling over itself apologizing and mobilizing investigators.

I don't know what to say. The pictures and video are shocking.

Update:
The train was only a minute to a minute and a half behind schedule.
Investigators have found crush marks on the rails that might indicate that the rails had some sort of debris on them before the train came by, which, combined with the speed of the train, forced the derailment.