Dutch judges on Monday banned a national motorcycle club and seized all its assets, ruling gang members had spread a culture of violence and criminal activities in the Netherlands.
"The court in The Hague has decided today that the motorcycle club Satudarah is banned with immediate effect," the judges said in their ruling.
The ban includes not just Satudarah, but also its fan club, and affiliate Supportcrew 999.
The judges found "the combination of numerous offences along with its culture of violence means Satudarah's activities are contrary to public order".
Its members "have been involved for many years in criminal activities including violence against other motorcycle clubs, manufacturing and trafficking in narcotics, the illegal possession of weapons and extortion".
The judges also ordered that the club should lose all its assets including access to its clubhouse.
The case had been brought by the Dutch prosecution service, as part of an ongoing clampdown on gang violence.
Last year prosecutors successfully shut down the violent biker gang the Bandidos, when a court in Utrecht ordered all the club's chapters to close, saying it posed a public threat.
Dutch justices have also tried in vain several times to outlaw the Hells Angels as a criminal organisation. But a new case against the Hells Angels is due to be heard next month, the Dutch broadcaster NOS said.