A Parisian amateur football match at the beginning of the month descended just into gang warfare midway through the second half. The match between Ivry-sur-Siene and Val de Fontenay turned scarily violent with 'fans' of both teams fighting each other using a vast array of weapons in their arsenal which included knives, pickaxes, iron pipes, teargas, spray and baseball bats.
http://youtu.be/hZaMC4MkFT4
Footage from the brawl was captured by French newspaper Le Parisien and has been used as evidence to arrest many of the culprits from the brawl.
(H/T 101 Great Goals) And (Whoateallthepies)