Two people were taken into custody at a polling stations in Keratsini, near Piraeus, on Sunday after an attack on representatives of the anti-capitalist ANTARSYA party.
Witnesses said the two assailants were wearing clothing bearing Golden Dawn’s symbol.
Keratsini is where rapper Pavlos Fyssas was murdered by a Golden Dawn member in September 2013.
A representative of the far-right party was attacked at a polling center in Piraeus as well on Sunday.
The attacker escaped without being caught.
No serious injuries were reported in either attack.