Basically, a group of Lebanese Muslims descended on a beach and beat up two lifeguards and kicked the locals out, saying "it was their territory, now".
The next day, about 5000 locals returned to take be beach back.
Some yahoos beat up some non combatant ME's and the Muzzies started rioting all over the city.
What the worldwide press isnt telling people (big surprise!) is that a certain group of youth of a certain cultural extraction have been increasingly hostile and aggressive over the last several years. Gang rapes have been rampant. The police of NSW have been hog-tied in their ability to control the situation. Opportunistic groups like neo-Nazis joined in and now the MSM has been gleefully reporting that its a bunch of racists running ther show there.