Bogota’s Regulatory Center of Emergency Services said four policemen and four civilians were hospitalized for injuries and that one youth was stabbed, according to Web site Colombia Reports.

Arrest numbers vary, but Colombia Reports said 130 people were busted while raw Associated Press footage posted on YouTube cites 168.

Colombia Reports also said Radio Santa Fe reported that there were posts on Facebook before the concert inciting fans to crash the event.

There is also an indication that local police might have thought something was up before the gig took place. On the day of the show Colombia Reports posted an item saying “security measures are set to be as heavy as the music,” and that authorities would be “closing the streets around the park and preventing the entry of under 14s, pregnant women, those under the influence of alcohol or drugs, and those carrying weapons.”

Other security measures included approximately 1,500 police positioned around the park, four tanks and several police trucks.

Click here and here for the Colombia Reports articles.