The police report on Twitter at 23.10 that they have control of the area.
At the entrance to the event area on Kontraskjæret, the police had to break into a fight on Saturday night.
Ten people are said to have been involved in the fight, but only minor injuries have been reported.
– A girl is said to have been hit on the ground, and a person has received a cut to the head. But it is only described as minor injuries, says operations manager in the Oslo police district, Gjermund Stokkli.
Stokkli does not know if the fight has affected any of those who were present to watch the football match on Saturday night.
– There have been guards who have run after some of those who were involved, so some of those who are present have probably caught it.
The cause of the fight is said to be the theft of a mobile phone.
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