On May Day in Kreuzberg, several thousand protesters or spectators took part in demonstrations which, while unauthorised, were largely left alone by the police. Most of those gathered appeared to keep a safe distance from each other; however, from the early evening onwards, many hundreds were observed not to do so, leading Berlin's Senator for the Interior Andreas Geisel to sharply condemn the protesters for their "geballte Unvernunft" ("bunched-up lack of common sense"). After nightfall, several members of the police force were injured, who arrested 209 people. In Hamburg, police dissolved an unauthorised assembly of 350 people at Reeperbahn and later another one at Sternschanze, where some rioters threw objects at them. An assembly in Leipzig which, according to preliminary estimates by police, drew more than 200 participants, received a spontaneous permit by authorities.