Authorities in Germany briefly shut an airport and scrambled fighter jets to escort a passenger plane from Greece over concerns about an in-flight emergency on Tuesday, the dpa news agency reported.
Police cordoned off Nuremberg airport in southern Germany and launched an investigation before the commercial plane landed safely from the Greek island of Corfu and authorities issued an all-clear, the agency reported.
Details about the emergency call were not immediately available. Earlier Tuesday, authorities noted a possible drone sighting at the airport.
An airport spokesperson said six flights were delayed and two inbound flights were diverted to other airports as a precaution.
Authorities across Europe have stepped up surveillance of the skies in recent weeks amid an increasing number of mostly mysterious drone incidents and concerns about Russian malfeasance as Moscow's war in Ukraine continues.
The German government last month blamed Russia for an attempted attack at Leipzig/Halle Airport in August using a drone laden with explosives, and announced a shutdown of a Russian consulate among other measures.
Russian President Vladimir Putin dismissed Berlin’s allegations.
Moscow has been widely accused by Western officials of running a campaign of sabotage and disruption with the aim of undermining support for Ukraine and destabilizing European nations.
Read MoreFighter jets deployed and airport shut in ‘aviation emergency’ over German city
