According to Norway’s Aftenposten newspaper, the team's passionate supporters club -- known as “the Klan” -- has recently seen a faction develop which calls itself Isko Boys, and which has ties to the Bandidos motorcycle club.
“There’s been a shift among the supporters at Vålerenga,” Einar Was, an inspector for the Oslo Police District, told the newspaper. “We can confirm that there’s now an unfortunate connection to crime and criminal groups.”
In a recent case in Oslo District court, a man who is a member of Isko Boys as well as several neo-nazi groups, was accused of a violent attack on three Muslim men.
In July, a Vålerenga supporter was beaten by members of Isko Boys because he tried to stop a fight between members of the faction and a women who worked for the Vålerenga supporters club.
Våleregna supporters are not yet ready to officially exclude the group from it’s ranks.
“All football clubs from capital cities have hooligans. It’s not something Våleregna wishes, but it is the case," Espen Knutsen of the Våleregna supporters' club told Aftenposten.
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"We will not exclude certain groups, but we condemn violence, threats and discrimination. Everyone who breaks our rules is met with sanctions. But, everyone who is not excluded is warmly welcomed."
According to Isko Boys own Facebook page, the group has been active since 1999.