Golden Dawn party leader Nikolas Michalolakis, who led Greece’s Golden Dawn, has been arrested by police in Greece’s southern province of Perama, police said on Monday.
The Golden Dawn said in a statement that Michalollakis, 32, was arrested for allegedly trying to overthrow the government.
“Golden Dawn is extremely disappointed by this development,” the party said.
Michalolsakis, a former leader of the neo-Nazi Golden Dawn who is serving a 12-year prison sentence for allegedly attempting to overthrow Greek Prime Minister Alexis Tsipras, was not immediately available for comment.
The party’s leader, Nikos Papandreou, also made no immediate comment.
He had been in custody since April.
A video released by the party in April showed Michalopoulos and several members of the party allegedly beating a police officer during a protest in the central Athens suburb of Thessaloniki in September.
On Monday, Papandreos’ office said Michalopolakis had been arrested for “treason” and had been placed under house arrest.
In a video released on March 1, the party’s leadership announced that Papandreouk would be replaced as party leader, and that the party would end its participation in the Greek elections.