Residents occupying the property on Rigaer Strasse – a stronghold of the left-wing extremist scene in the German capital – clashed with officers ahead of a fire safety check on Thursday. They fear that the inspection could be used by the owner and the police as an excuse to enter the building, declare it “uninhabitable” and evict them.
Protesters also threw firecrackers at the police.
And a video shared on Twitter by the editor of the German newspaper taz, Erik Peter, shows officers being pelted with stones.
Mr Peter tweeted: “Stones were thrown at police officers who dared to approach the barricade. “
Several police officers were reportedly injured.
An eyewitness told German newspaper WELT: “In the more than ten years that I have lived here in Kiez, this has been one of the most violent arguments”.
Police have imposed a ban on demonstrations and parking in the area from Wednesday noon to Friday evening.
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“To safely extinguish the fire, we use water cannons and cleaning technology. “
Residents on the left of the property fear the fire inspection test could be used to evict them.
But Home Secretary Andreas Geisel has repeatedly denied that the test was for a deportation.
There are leases for most of the apartments, but it is not known who lives there.
The owner and the police have been denied entry for years.
Fire safety issues such as the lack of escape routes, faulty electrical cables and barriers in stairwells have already been detected in the building.
Additional reporting by Monika Pallenberg.