1. Greece: Thousands stranded across Europe as air space disrupted  BBC
  2. Radio frequency loss grounds flights in Greece, stranding thousands  Reuters
  3. Flight chaos as air-traffic control failure causes cancellations and diversions in Greece  The Independent
  4. Delays expected at Ben Gurion Airport after Greece shuts its airports over radio issue  The Times of Israel
  5. Greek airspace closes until 4 p.m. amid widespread issues  The Jerusalem Post