This Brutal Mexican Fistfight Festival Goes Back 500 Years

Men, women and children take part in brutal street fighting in the village of Zitlala in Mexico's Guerrero state to commemorate a centuries old battles with the Aztecs in a festival called the Fight of the Xochimilcas. Fuelled by booze and music, members of the Nahua Indian community trade blows in fierce clashes that only end when fighters quit or are knocked out.