In their team's Greek Cup semifinal against hated rival Olympiakos, PAOK fans surrounded the field with a ring of flares that shot off fire and smoke in all directions.
Violence is a problem in Greek soccer, but this appears to have been just a hardcore bit a pageantry, Dirty Tackle points out.
Goodness:
An usher had to clean up the flares:
The view of the field from television:
One end of the field looked completely on fire:
Full video (via Dirty Tackle):