I saw this recently on The Drive – Elusive Plane Puzzled European Air Defenses, Then Its Crew Vanished: https://www.thedrive.com/the-war-zone/elusive-plane-puzzled-european-air-defenses-then-its-crew-vanished/. Longer article.
BY EMMA HELFRICH June 10, 2022
The anonymous plane is making headlines for its mysterious expedition, and European air defenders still aren’t exactly sure what to make of it.
An unidentified aircraft flew through airspaces belonging to multiple countries, almost all of them NATO members, without any official dispatch or approved flight plan. The illegal journey, which began in Lithuania, was monitored closely by all nations involved without any communication from the pilot. The plane was eventually found in Bulgaria covered in canvas without any trace of its crew.
The plane is reported to have initially departed from an undisclosed airport in Lithuania and then proceeded to fly over Hungary, Poland, Slovakia, Serbia, and Romania before entering Bulgaria through the northern city of Vidin. With the exception of Serbia, all of the nations are part of the NATO alliance.
The plane reportedly finally landed in a small abandoned Bulgarian airfield known as the Targovishte Airport near the village of Buhovtsi between Targovishte and Shumen. The airport is purported to have not accepted a plane for many years, and locals have begun utilizing it in the summer months for agricultural purposes. European news source Euractiv states that when the plane was discovered, its engine was still warm.