Flights at Sydney Airport experienced cancellations and delays on Friday morning due to a lack of available air traffic controllers. The disruption comes as Australia's air traffic management agency investigates a series of near-miss incidents recently occurring at the airport. The agency confirmed the shortage as the cause of the operational issues, impacting travel for many passengers. Authorities are currently probing the causes behind the near-misses to prevent future incidents. The situation highlights concerns regarding staffing levels within Australia’s air traffic control system. Further updates are expected as the agency works to resolve the controller shortage and address safety concerns at Sydney Airport. Travelers are advised to check with their airlines for the latest flight information.