Bayern Munich have been fined €15,000 by the German Football Association (DFB) following a series of incidents during recent Bundesliga matches.
The DFB said they were acting against the league leaders "because of two cases of unsporting behaviour and not having enough stewards".
Bayern fans set off flares during a clash with Fortuna Dusseldorf at the Allianz Arena on October 20, while fireworks were let off during the November 17 clash with Nurnberg.