The venue was called Zaal Klacik (pronounce "Classic"). It was a sportsclub that during the weekend turned into a party venue. The owners of the venue were angry with the organizers of the concert, because only 50 people showed up (apparently U2 confirmed the gig only weeks before).
After the concert, that lasted little over half an hour, the band was quickly dumped on the street so that the more succesfull "weekend party" could start :-)