An Italian fighter jet deployed on a NATO mission shot down a drone in Lithuanian airspace on Tuesday that "most probably" came from Russia, Italian Defence Minister Guido Crosetto said.
Lithuanian authorities said on Tuesday they are still investigating the origin of the debris.
A Ukrainian military source told Reuters the debris in the images appeared to be from a Geran-2, a long-range attack drone widely used by Russia.
Russia did not immediately comment on the incident.
If confirmed, it would be the first known instance of a Russian military drone entering Lithuania, a NATO and European Union member, since the summer of 2025, when two Russian drones accidentally crashed in the country.
The drone entered Lithuanian airspace from Belarus, a Russian ally, after midnight and was shot down near the southern village of Pratkunai not far from the city of Kaunas, the Lithuanian national crisis management centre said.
"Last night, again, the Italian pilots have intervened and they have shot down a threat that most probably came from Russia", Crosetto told reporters at Siauliai Air Base, where Italian fighters are based as part of the NATO Baltic Air Defence mission.
"The presence of Italian aircraft here is the clear demonstration of the value of the Atlantic alliance for Italy and what it means to be an ally", he said after meeting crews with Lithuanian Defence Minister Robertas Kaunas.
Kaunas said on social media the drone carried an explosive.
A drone alert had been issued in the Lithuanian capital Vilnius and Kaunas and the surrounding regions after the drone was detected.
Ukrainian drones have repeatedly entered NATO airspace in the Baltic region in recent months. Kyiv says they were steered off course by Russian signal jamming.
This has stoked concerns that Russia's war in Ukraine is spilling over NATO's borders.
Fighters with the NATO Baltic Air Defence mission have patrolled the skies of Latvia, Lithuania and Estonia since the Baltic countries joined the alliance in 2004.
The mission's jets shot down stray Ukrainian drones over Estonia in May, and over Latvia in June and August.
Ukraine has stepped up long-range drone attacks on Russia, including in the Baltic Sea area.
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