BERLIN - Police say more than 120 officers were injured and 86 demonstrators were detained during leftist riots in the German capital which police call "the most aggressive and violent protests in the last five years."

Berlin police said in a statement Sunday that protesters threw bottles, cobblestones and fireworks, destroyed cars and attacked officers. Only one of the police officers required treatment at a hospital. It wasn't immediately clear how many rioters were injured.

About 3,500 protesters participated in the rallies, which started Saturday evening and lasted until early Sunday. Activists had called for the demonstration to protest against police operations at buildings taken over the squatters in the eastern part of the city last month.

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Around 1,800 police officers were called in to monitor the protesters.