It has been reported that all airports in Greece have been closed due to frequency issues.
It was stated that a technical problem experienced on some radio frequencies used in regional control centers in Greece starting at 09:00 local time negatively affected communication between air traffic controllers and pilots.
Authorities noted that landings and takeoffs at airports across the country had been temporarily suspended and that planes were being diverted to different airports.
The Greek press announced that Athens Chief Prosecutor Aristidis Korias had launched an urgent investigation into the technical malfunction that caused flights to be canceled at airports yesterday. It was stated that the investigation, to be conducted by the Electronic Crimes Department, would look into the source of the problem affecting Greek airspace.