article_snippet.sent: Scroll down for video .
article_snippet.sent: According to NSW police media police were assisted by back up officers as well as the Riot Squad and Dog Squads.
article_snippet.sent: After further safety concerns, Public Order, Operations Support Group and Traffic and Highway patrol were also in attendance.
article_snippet.sent: After further safety concerns, Public Order, Operations Support Group and Highway patrol also attended .
article_snippet.sent: Police are currently investigating whether the party was advertised on social media.