** Shares of airport operator Auckland International Airport AIA.NZ fall as much as 2.4%
** Auckland Airport encounters security breach, according to a media report, causing four flights to be cancelled and others delayed
** AIA did not immediately respond to Reuters' request for comment
** AIA down 10.7% YTD as of 0331 GMT
(Reporting by Adwitiya Srivastava in Bengaluru)
((Adwitiya.Srivastava@thomsonreuters.com;))