Two new members of the Greek far-right Golden Dawn party have been remanded in custody after appearing in court on Saturday.
Three other party members, including its leader, were jailed in October.
They, and the two remanded on Saturday, are waiting a trial on charges of running or participating in a criminal group.
The charges could prevent a bid by the British National Party to form a Europe-wide far right coalition for the European elections.
Golden Dawn leaders, who have openly expressed admiration for Adolf Hitler, deny any involvement in frequent street attacks against immigrants, political opponents and gay people.