Anarchist groups and riot police clashed in Thessaloniki all through the night on Saturday after some 2,000 left-wing activists from all over Greece and the Balkans held a rally against racism. Dozens of masked protesters threw petrol bombs and projectiles at the police, who responded with tear gas. The skirmish continued for hours and only stopped about 04:00am Sunday local time (02:00 Sun GMT... Еще). No arrests have yet been reported. According to reports, the gathering of Balkan anarchists was organised after far-right wing nationalists allegedly burnt down an Antifa-occupied building in Thessaloniki in January.