For more info: http://www.liveleak.com/browse?q=dutch select latest
This clip just showed up, probably a teaser.

(Random article)According to the Dutch newspaper De Telegraaf, riot police have had to be called in after a teenagers Facebook event saw thousands of revelers descend on the small suburban town of Haren (pop. 18,000)
Dutch media is also reporting on that journalists are being attacked by the crowd.

Incredibly, this whole thing apparently began as a simple Facebook event for a 16-year-old's birthday party. When the birthday girl didn't set to event to "private", the event swiftly went viral and thousands of strangers said they would be attending. Enterprising guests began creating viral videos, [url=http://www.projectxharen.net/]"official websites"[/url] and t-shirts, dubbing the event "Project X Haren" (a reference to an American movie about a wild party). According to Volkskrant, 30,000 people eventually signed up to attend the party.

http://www.businessinsider.com/project-x-haren-creates-riots-in-holland-2012-9