Thousands of people have protested in the German capital, Berlin, angry at coronavirus restrictions, the BBC reports.
Some 38,000 people took part in a march that split into two main groups.
Police ordered one group near the Unter den Linden to disperse for flouting safety rules, then arrested 200 after rocks and bottles were thrown.
A second group of about 30,000 met peacefully west of the Brandenburg gate to hear speeches from, among others, the nephew of President John F Kennedy.
Although Germany has so far not seen the wave of cases affecting some parts of Europe, its infection rate has been growing. New case numbers are reaching highs last seen in April.
Police issued an order for a protest around the Unter den Linden, near the Brandenburg Gate, to disperse at about midday after participants refused to keep a safe distance from each other, the authorities said.
“Unfortunately, we have no other option,” Berlin police said on Twitter. “All the measures taken so far have not led to compliance with the conditions.”
Protesters were closely packed in places, and sat together on the ground at one point.
Some demonstrators remained gathered there in the early evening, with bottles and rocks thrown at police.
Among the 200 people arrested was cookery author and conspiracy theorist Attila Hildmann, who had addressed crowds through a loudspeaker.
The other main group of around 30,000 people to the west of the Brandenburg Gate was respecting the rules, Interior Minister Andreas Geisel said.
A ban had originally been imposed on Saturday’s protest but a court overturned it. Mr Geisel said he regretted the way the violence had developed but that the situation was “predictable”.
Berlin police tweeted at about 22.40 local time (20:40 GMT) that their operations were ending, saying there had been peaceful protests by tens of thousands but that officers had also suffered verbal abuse.
Mr Geisel said the people protesting outside the Russian Embassy on Unter den Linden were “right-wing extremists” and that seven police officers had been injured.
Some protesters then broke through a cordon at the Reichstag building and were dispersed by police using pepper spray.
