Etna eruption extends closure of Sicily's Catania airport until Saturday ReutersHundreds of Flights Canceled in Sicily as Mount Etna Erupts The New York TimesPersistent Etna ash shuts Sicily’s busiest airport during peak holiday week apnews.comEtna eruption enters seventh day in phenomenon unseen since the 1970s Euronews.comAsh from Mount Etna eruption leads to hundreds of flight cancellations in Sicily Sky News