NSW Premier Gladys Berejiklian says she is "really disturbed" by the Queensland government's border ultimatum after her state records three new mystery COVID-19 cases after 12 days of zero community transmission. Subscribe: https://bit.ly/2noaGhv Get more breaking news at: https://bit.ly/2nobVgF Join 9News for the latest in news and events that affect you in your local city, as well as news from across Australia and the world. Follow 9News on Facebook: / 9news Follow 9News on Twitter: / 9newsaus Follow 9News on Instagram: / 9news #9News #BreakingNews #NineNewsAustralia #9NewsAUS