RB Leipzig have demanded stadium bans for "anarchists" who delayed the kickoff for Sunday's Bundesliga match away to Cologne.
Cologne supporters blocked the stadium entrance with a sit-in, forcing the Leipzig team bus to travel to the opposite side of the ground to gain entry, which caused a 15-minute delay to the kickoff ahead of the 1-1 draw.
RB Leipzig, founded by soft-drink company Red Bull in 2009, have faced protests from opposition fans in every game they have played since securing promotion to the top flight due to anger over the perceived commercialisation of the game and circumvention of the Bundesliga's 50+1 regulations.
"Those anarchists need to receive stadium bans," Leipzig CEO Oliver Mintzlaff told SID on Monday. "But the reality in the Bundesliga is that not even the personal details of such people are ascertained. The rowdy people are allowed in time and time again and can use the platform, but those alleged fans should be barred once for all.
"Those are minorities who want to gain attention, but those 50 alleged fans have no place in football. They damage their sport and their own team."
Nach Sitzblockade: RB-Chef Mintzlaff fordert harte Strafen für Köln-Fans https://t.co/RGyzb4JLoI pic.twitter.com/VAOr31ZyYR
- WELT (@welt) September 26, 2016
The German FA (DFB) announced on Monday that it is investigating the incidents at the Cologne match, which also included banners hitting out at RB Leipzig inside the RheinEnergieStadion.
Cologne police also said in a press release on Monday that eggs had been thrown at the Leipzig team bus in the city centre prior to its arrival in the city centre, adding that around 270 Cologne fans had blocked the path to the stadium entrance.
The press release added that during the match "unknown perpetrators" slashed tires of seven minibuses in the car park for away fans and said a group of 100 Cologne supporters tried to storm the away end after the final whistle.
"But this was thwarted with the use of batons and pepper spray," the police statement said, adding that one officer was injured during the fights.
Cologne's chief constable, Jurgen Mathies, said the fans not only damaged the club's reputation but also "trampled on that of the city of Cologne" and vowed to take action against the perpetrators.
Speaking at the club's annual member meeting late on Monday, FC Cologne president Werner Spinner said the club were taking the police report seriously.
"If those investigations turn out to be true, then it's something we condemn utterly," he said.
Spinner had already condemned the sit-in but also criticised Leipzig for blowing things out of proportion when demanding stadium bans.
He said: "Leipzig will always use this to cast a bad light on other clubs and make their club look better."