The council meeting had to be called off shortly after it started. Hundreds of demonstrators had been gathering in from of the town hall since the early morning. Some from the left-wing spectrum had attacked the member of the Pro Köln group and prevented him entering the town hall, said a police spokesman. Three left-wingers were temporarily arrested.Source: PI
In a scary instance of Soviet-style censorship, the story quoted above has since been altered to remove the reference to the attack on Uckermann. The original version can still be read on the PI site, at the link provided. The new, censored version is here.