The Greek government has launched a probe of the neo-Nazi Golden Dawn party in the aftermath of the killing of a prominent hip-hop musician. Rapper Pavlovs Fissass was stabbed to death by a Golden Dawn supporter outside a café last week. The murder has sparked a new wave of protests against Golden Dawn, which placed third in last year’s Greek election. On Tuesday, Greek hip-hop artists came together for an event honoring Fissass’ life. Rapper Nikitas Klint said Greeks are united against facism.

Nikitas Klint: “It was a very great moment to be united, to forget about our differences and agree on one fact: that neo-Nazis and fascism is not tolerated. We have to be more tolerant as a society towards everybody who is different, and not tolerant at all to the people who are ready to kill.”

On Tuesday, Greek police raided the Golden Dawn’s headquarters and arrested a police officer working as a bodyguard for a party lawmaker. The ongoing probe is focusing on ties between law enforcement and Golden Dawn politicians.