Violence has broken out at a march in Greece, held to honor a rap singer whose stabbing death a year ago triggered a crackdown on the extreme right Golden Dawn party.

Hundreds of youths were involved Thursday's clashes that followed a peaceful rally in Keratsini, west of Athens, where rapper Pavlos Fyssas was stabbed in the street a year ago.

Rioters smashed storefronts and set fire to trash bins to use as barricades, while police responded with tear gas. At least one bystander was injured. Police had no immediate reports of any arrests.

A volunteer for the Golden Dawn party was arrested for the murder of Fyssas, 34, while a criminal investigation that followed prompted the arrest of party leader Nikos Michaloliakos and other senior members.