Greek police have arrested a neo-Nazi after a left-wing militant was stabbed to death in a fight near Athens, a police source said Wednesday.
The 34-year-old victim died in hospital from knife wounds after the fight broke out around midnight in the Keratsini suburb, west of Athens.
According to preliminary enquiries, the dead man was a member of a small left-wing group called Antarsia.
The suspect in the killing, a 45-year-old member of the Golden Dawn neo-Nazi group, was picked up by police and was in possession of a knife, police said.
Local news reports said the fighting started outside a cafe over a football argument which degenerated due to the protagonists' political leanings.
On Friday, in a neighbouring suburb, eight members of the communist party KKE were injured in an attack blamed on Golden Dawn members.
Golden Dawn is a rising force in Greek politics, capitalising on the country's recession plight and widespread anger towards mainstream parties for failing to tackle decades of corruption.
The neo-Nazi party last year had 18 deputies elected to parliament and currently ranks third in opinion polls.
It has been suspected of orchestrating attacks on migrants -- though the party has repeatedly denied this -- and several of its lawmakers are facing court action for violent behaviour.