Several Iranians who live in exile in Berlin were attacked in a camp of protesters who advocate for women's rights and democracy in their native country, police said today, quoted by DPA, BTA reported.

Last night, a 26-year-old man destroyed banners and threatened activists with a knife, police said, adding that no one was injured.

The attack was preceded by weeks of a brutal crackdown on nationwide protests in Iran, sparked by the death of young Mahsa Amini in September.

The 22-year-old Kurdish woman died after being detained by morality police for not following Iran's dress code.

Berlin police said early this morning that the attacker had been arrested and criminal proceedings had been opened against him.

The National Security Agency, the body that deals with terrorist attacks, has also been referred as the attack may have been politically motivated.

At the time of the attack, around 11pm last night, nine activists were at the protest site, according to Feminista Berlin.

This group set up a protest camp a few weeks ago in front of the federal headquarters of the Green Party, which is part of Germany's ruling triple coalition.

The attacker was accompanied by three other people - two women and a man, the activists said.

A police patrol, which happened to be on the scene during the attack, prevented a more serious development of the events, said one of the organizers.