Killing of Greek hip-hop artist sparks street clashes in Athens By Elinda Labropoulou, for CNN September 19, 2013 -- Updated 1101 GMT (1901 HKT) Anti-fascist protesters hold signs reading 'Neo-Nazis Out' at a rally in Athens on September 18, 2013. There is concern in Greece over rising political extremism The Golden Dawn political party is known as extreme right-wing An anti-fascist activist who is a hip-hop artist is killed, allegedly by a Golden Dawn supporter Anti-fascist protesters take to the streets in the Athens suburb where the killing occurred Athens, Greece (CNN) -- Protesters clashed with Greek police on Wednesday evening in a working-class Athens suburb where a 34-year-old hip-hop performer and anti-fascist activist had been stabbed to death earlier, allegedly by a supporter of the extreme right-wing Golden Dawn party. Police have arrested a 45-year-old man who they say admitted to the killing and claimed to be a supporter of the far-right political party. READ: Greek minister: Country may need extra 10 billion euros Anti-fascist activist Pavlos Fyssas, well known as a hip-hop artist with the stage name Killah P, died in a state hospital after being stabbed twice outside a cafe in the working-class Keratsini area west of Athens. The stabbing came after a brawl that had started over a football game. The killing took place amid concern over rising extremism in Greece, now is its sixth consecutive year of recession. READ: Europe's public health disaster: How austerity kills Following the stabbing, police raided a number of Golden Dawn offices looking for possible links to the crime. Thousands of protesters held anti-fascist demonstrations in Fyssas' memory in Keratsini and several other Greek cities on Wednesday evening, with some of the demonstrations turning violent. In Keratsini, the violence was concentrated near the scene of the stabbing, with anti-fascist protesters hurling rocks at riot police and burning bins outside a police station. Greek Public Order Minister Nikos Dendias described the killing as "abominable murder...by an attacker who, according to his own statement, sympathizes with Golden Dawn, thus illustrating in the most obvious way the intentions of neo-Nazism." Dendias said the government is looking to amend the country's criminal code to make it easier to prosecute political attacks and better define what constitutes an "armed gang." There have been a growing number of voices asking that the Golden Dawn party be banned. Deputy Prime Minister Evangelos Venizelos, whose socialist Pasok party is co-governing, said Golden Dawn "must be dealt with as a criminal organization." Within the European Union, there have also been calls to examine banning the party, which has been characterized by extreme rhetoric and tactics focused mainly on immigrants. Golden Dawn followers have also clashed with left-wing anarchists in the past. Golden Dawn MP Ilias Kassidiaris has denied his party's involvement in the Fyssas killing, calling it a "heinous crime." He said politicians were "exploiting a tragic event to win votes and divide Greek society." The president of the Socialists and Democrats Group in the European Parliament, Hannes Swoboda, has urged Greek lawmakers to examine banning the party. Golden Dawn's openly xenophobic, neo-Nazi hatred goes as far as murdering political opponents. This is shocking and intolerable by any standards, and more so in a European Union country," Swoboda said. From just 0.3% of the vote in the 2009 elections, Golden Dawn went on to win nearly 7% in 2012, entering parliament for the first time. Recent polls show that its popularity may be as high up as 12% of the electorate, which would make it the third most popular party in Greece.