Anarchists clashed with riot police in Greece on Saturday after thousands of protesters from across the Balkans marched against nationalism in the city of Thessaloniki.

Riot police threw stun grenades and used tear gas against the protesting anarchists.

According to police, a number of protesters threw petrol bombs at officers.

The gathering was organised after far-right activists burned down an anarchist premises in January.

Authorities estimate about 2,000 anti-establishment protesters from Greece and the Balkans participated in the march.

Warzone during Pan-Balkan Anarchists Rally in Thessaloniki Greece - Anarchists clashed with riot police during a Pan-Balkan Internationalist rally held at the center of Thessaloniki on Saturday afternoon, to protest against nationalism in the region and in solidarity to the Libertatia squat which was burned by far-right groups during the "Macedonia rally" in the city in January.

According to police, a number of protesters threw petrol bombs against policemen who responded with teargas. Authorities estimate about 2,000 anti-establishment protesters from Greece and the Balkans participated in the rally.