What happened today at Emirates Stadium was both shocking and dangerous, as German fans flooded the venue in record numbers.
The problem with this kind of turnout was that counter measures weren't enough to keep massive protests outside the stadium at ease, which angered German fans trying to push their way in.
Videos from earlier today showed Koln fans taking the Emirates' stands all to themselves.
Those of you that know your Emirates geography will spot a dramatically expanded away end pic.twitter.com/zPy40MPTIC
— James Benge (@jamesbenge) September 14, 2017
As police officers tried to keep things calm, a group of Koln's supporters started fighting inside the stadium.
Scenes at the Emirates. #Arskol pic.twitter.com/jyk36B4UeO
— Ryan (@Vintage_Utd) September 14, 2017
Things got out of hand as fans tried to push their way inside the stadium. Enraged fans stormed the barriers and started a fight against those in charge of their security.
FC Koln fans without tickets trashing the Emirates trying to get in! #Arsenal #Cologne #UEL. pic.twitter.com/h5n2W7ab6c
— Ethan MUFC Devil's (@ethanjames33) September 14, 2017
This protests caused the game to be delayed for an hour. No further information has been handed about a possible sanction against the Gunners.