You may have watched news yeasterday and saw the street fights at Hamburg , Germany between police and demonstrants.
This Video shows how everything started:
The video shows the situation , when the demonstration should start. The police starts to run into the demonstrants and beat up peaceful demonstrants. you can see demonstrants running away from the police . The pictures seem to be from Turkey where demonstrants are attacked by police , but this is Germany !
After a few minutes , the demonstrants start to fight back . The fights continued multiple hours until late at night.