Thousands protested late into Sunday night (March 25) in Barcelona, some clashing with riot police in violent scenes.

In the video, Catalonia police - known as the Mossos d'Esquadra - are pelted with eggs while demonstrators are struck with batons.

Tensions in Catalonia have been heightened after the region's former president, Carles Puigdemont, was arrested on a European warrant following his arrival in Germany from Denmark on earlier on Sunday.

People reacted with mass protest and anger against the recent detention of 5 more Catalan politicians and Sunday detention in Germany of the ex Catalan President Carles Puigdemont persecuted in Spain for rebellion crimes.

Yesterday was a day of rage or the start of a Catalan Spring?

Barcelona saw some of the worst riots in last years.

Pro Catalonia Independence protesters clashed with police after the Catalan ex President exiled in Belgium, Carles Puigdemont, was detained in Germany.

Protests and tension started two days ago since 5 more Catalan politicians were jailed in Spain accused of rebellion. Protesters clashed with police, set up barricades on fire and police confronted them with batons and shooting blanks in the commercial and touristic downtown of Barcelona.