Yes, it's a bit worse than the earlier report I saw unfortunately, with the driver seriously injured and seven passengers needing hospital treatment. On www.haz.de they have a gallery of pictures and the loco cab looks quite badly damaged.
The carriages seem to be pretty much intact, so I imagine the passenger injuries were mainly from being thrown around in the carriage that went down the embankment.
The DB regional stock has got some surprisingly hard edges in it - just standing up straight on the top deck window seats you can give your head a nasty whack on the metal edge of the luggage rack because it's so low. I'm 5'11' and I think I've learnt my lesson now, but even someone 6 inches shorter would probably hit their head as well.
http://www.haz.de/Mediathek/Fotostrecken/16-Verletzte-bei-Zugunglueck-in-Peine/(at)/90/(mode)/full/(offset)/2