The leader of Greece's far-right Golden Dawn party Nikolaos Mihaloliakos has been arrested on charges of forming a criminal organisation.
Police are currently investigating the party for links with the killing of an anti-fascist rapper by a self-proclaimed Golden Dawn supporter.
The stabbing to death of Pavlos Fissas on 17 September sparked violent protests in the capital of Athens.
More top news
Former leading amateur jockey JT McNamara has died aged 41
A production company has admitted health and safety breaches after Harrison Ford was crushed by a hydraulic door while filming Star Wars.
The letter said he could "wipe out 470 disabled individuals" to help "revitalise the world economy" and "prevent World War III".