The Conference League match in France had to be postponed for almost an hour after violent scenes unfolded in the stands.
Full-scale fighting with various additions and pyrotechnics must have been thrown between the phalanxes. It ended up with 32 people injured, nine of whom were police officers. Four were hospitalized and one had to be taken to hospital with serious injuries after falling five meters from a stand.
French police have launched an investigation and UEFA have launched disciplinary inquiries against both clubs.
German police have set up an evidence portal for photos and videos and the Bundesliga club is urging its supporters to leave evidence there.
— It was only a small minority, fewer than 100 people, who started the violence and ensured that it spread. More than 7,900 of the 8,000 Cologne supporters had nothing to do with the violence, says club manager Christian Keller.