Oh it happened ... the surprising thing is that it took so long to hit the news, but by now even the Chancellor recognized and addressed it.[citation needed]
I've also seen reports of a policewomen being groped inside her pants[citation needed] and other police attempting to rescue some of the girls. (Some as in: They rescued one, but the two friends of the girl couldn't be retrieved from the crowd)[citation needed]
Also worth noting is that the first reports speak of 30 reported assaults, then 60 and now the later come up at 90, but it also is mentioned again and again that the actual number of assaults (i.e. reported + unreported) is likely even higher as usual with such attacks (due to shame etc.)
Watching this cluster**** still unfold as more news keep hitting the net. (Again, amazing that it took that long)
I'm trying to help you.
English reporting is lagging behind obviously, but i ll give you the german sources. Also: If you google: "Silvester Köln sexuelle Übergriffe" the net is truly full of it and by now pretty much All the major newspapers have articles on it.
First: Chancellor Merkels statement:
http://www.spiegel.de/politik/deutschland/koeln-angela-merkel-verlangt-harte-antwort-des-rechtsstaats-a-1070609.html "Merkel verlangt harte Antwort des Rechtsstaats"
Second: policewoman being groped (although admittedly she was not in uniform):
http://www.welt.de/vermischtes/article150593304/Ploetzlich-spuerte-ich-eine-Hand-an-meinem-Po.html "Nach aktuellen Angaben der Polizei wurde sogar einer Zivilpolizistin in die Hose gefasst. "Es ist ein unerträglicher Zustand, dass mitten in der Stadt solche Straftaten begangen werden", sagte Kölns Polizeipräsident Wolfgang Albers am Montag. Die Polizei will jetzt ihre Präsenz verstärken.""
Third: Police reporting they were able to save one girl, but not her friends:
http://www.welt.de/vermischtes/article150619851/Man-hatte-ihr-den-Slip-vom-Koerper-gerissen.html "Sie sei am Unterkörper auch unsittlich berührt worden. "Ihre drei Freundinnen konnten wir nicht aus dem Pulk retten, denn wir selbst wurden mit Böllern beworfen."
Eyewitness report included in the video.
Similar articles can easily be found by several other major newspapers by now. Spiegel and Welt are also rather major newspapers over here so i picked those.
Oh and ... go ahead and google "Tahrir place sexual assault" and you will find multiple instances of especially journalists being sexually assaulted in the middle of the day in the middle of a crowd in Bagdad. So stuff like that does indeed happen regularly... but it NEVER happened in the Federal Republic of Germany yet at all up to this point. Just to emphasize. (Example:
http://www.theguardian.com/world/2012/oct/21/sonia-dridi-attacked-tahrir-square: "What was depressing is that the employees inside Hardee's knew exactly what to do because this seems to happen all the time," Khalil said. "Some terrified woman running in one step ahead of a mob." Feel free to google more yourself, there appears to be quite a couple of incidents.)
I'll refrain from jumping to conclusions as more information may still become available. However from what we do know and from my perspective the stance of "this has nothing to do with different cultues" is just as problematic and shortsighted as the stance of "blaming all immigrants due to the actions of a few" is.