In Trondheim, between 40 and 50 supporters from the football clubs Rosenborg and Vålerenga were involved in a violent altercation on Saturday night, leading to multiple police responses. The altercation initially broke out at a pub in the city center around 10:45 PM, prompting local authorities to increase their presence in anticipation of further disturbances. According to operations leader Christopher James White from the Trøndelag police district, the situation remained tense even after the initial conflict ceased.

The police confirmed they would take a low threshold approach to charging individuals for disorderly conduct, indicating that anyone found engaging in violence would also be banned from attending the Rosenborg vs. Vålerenga match scheduled for the following day. This statement reflects the authorities' proactive stance in managing the situation to prevent further escalation of violence linked to football rivalries in the region.

This second incident unfolded in the early hours of Sunday morning shortly after 1:00 AM, with yet another brawl reported at a different pub and moving towards Olavshallen. Police reported that the groups dispersed upon their arrival, highlighting a recurring issue in Trondheim where football-related violence prompts significant law enforcement involvement both during games and in the city's nightlife.