European aviation has repeatedly been thrown into chaos in recent weeks by drone sightings that some authorities have blamed on Russia. Authorities have yet to attribute Thursday's or Friday's drone sightings to a specific actor. "German air traffic control restricted flight operations at Munich Airport as a precautionary measure due to unconfirmed drone sightings and suspended them until further notice," a statement on the airport website read. In a later update, the airport said 23 flights were diverted, 12 flights to Munich and 48 departures cancelled or postponed. Munich airport was closed for several hours late on Thursday and in the small hours after unconfirmed drone sightings that disrupted dozens of flights.
