A German second-division match was interrupted for 15 minutes when a fire broke out in the stands after some fans set flares alight.
The referee sent the players to the locker room as soon as the fire broke out. Several flares were also thrown onto the field.
Police detained 75 people, 11 of whom could face charges. Police said 14 people were slightly injured.
The game ended 0-0.
Flirtation with Turkey turned out to be disastrous for Russia, but as long as Russia is in the game, the stakes should be high