Greece on Saturday detained 44 suspected right-wing extremists for violently disrupting an anti-racism rally in Ambelokipi, central Athens, Greek media said.
Hundreds of protesters marched through the streets of Athens demanding the right to grant citizenship for all second generation immigrants who live in Greece.
One woman was injured and had to get hospital treatment.
The suspects have been "charged with a range of offenses, including disrupting the peace, using threatening behavior and illegally carrying and using weapons."
Extremists caused widespread damage.
A 50-year-old woman was injured during the scuffles on Saturday, when the assailants allegedly used various objects to attack the protesters that had gathered outside the Panormou metro station.
All the charges have been changed from misdemeanors to felonies, as the 44 were allegedly wearing hoods or had their faces covered when they committed them.