Greeks marched in great numbers (at least 50,000) against the Nazi headquarters in Athens. The march began in Syntagma Square at around 18:50 (GMT+2) after a column from Popylea joined the main bloc. In spite of rumors of arrests in Exarcheia, the march went undisturbed to just a few hundred meters from the Nazi see in Mesogeion, where, around 20:20 police blocked it, resulting in fierce clashes.
The main bloc of the march went back to Alexandras Av. while clashes continued around the Nazi headquarters. However police attacked them also around 20:55.
The latest update (21:00) said that clashes continued and many had been arrested.
Source: From the Greek Streets.