The University held a meeting during which some Polish citizens were supposed to be awarded for their aid to Jewish people during WWII. When the Israeli ambassador started his speech anarchists unfurled a banner saying "Stop the slaughter in Gaza" and started to shout anti-war slogans. Then one man from the audience attacked the protesters, the people gathered in the hall started to pull the fighting people apart. The cops who were outside of the university walked 6 anarchists out of the hall, three of them were arrested and charged with an assault on Israeli journalist (he was taken to the hospital).
After police heard testimonies of other anarchists involved and saw the video made by TV all the anarchists were released without charges.
A solidarity picket with the arrestees took place in front of the police station.