Australian capital Canberra's airport was evacuated on Sunday after a gunman opened fire, media reports said.
The news reports said a single shooter had been arrested by the police and there were no immediate reports of injuries.
The police did not immediately comment and said they would issue a statement shortly.
Videos posted on social media showed police detaining a man inside the airport as travellers look on. Media and onlookers also gathered outside the airport following the evacuation.
(Reporting by Praveen Menon; Editing by Jacqueline Wong)
