Police used water canons do disperse people throwing stones and setting cars on fire [EPA]

Police used water canons do disperse people throwing stones and setting cars on fire [EPA]

About 2,000 police officers were deployed on the streets ahead of the demonstrations.

The northern port city regularly sees clashes between demonstrators and police.

On Friday, police arrested 60 people after 12 officers were hurt following an anti neo-Nazi rally.

Activists had marched against the far-right National Democratic Party (NPD).