The riots in Nørrebro were a reaction to the Danish government's decision to accept four exceptions in the Maastricht Treaty referendum. This treaty was pivotal as it aimed to enhance European integration and pave the way for the formation of the European Union. Numerous Danes felt that the agreement threatened national sovereignty and raised concerns about various implications for domestic policies. On that day, protests erupted in Nørrebro, a district known for its vibrant and sometimes volatile atmosphere.

Demonstrators, consisting of both activists and concerned citizens, took to the streets to express their frustrations. While initially peaceful, the protests escalated when police intervened, leading to violent confrontations. The situation intensified when, for the first time since World War II, Danish police opened fire on civilians, resulting in injuries to eleven demonstrators. This unprecedented police action was a critical turning point, highlighting the volatility of public sentiment towards government decisions and European integration.

The aftermath of the riots underscored deep societal divisions regarding national identity and international cooperation. The events in Nørrebro sparked a national debate regarding the direction of Denmark's role within Europe, especially among opposition parties and civil rights advocates. The violence caught the attention of the media and the public, reigniting discussions about policing tactics and the balance between civil liberties and state security.