Lithuania issues national air-raid alert over drone intrusion near Vilnius

On the morning of 20 May 2026, Lithuania issued a national air alert after military radar detected a track with the characteristics of an unmanned aerial vehicle near the eastern border. The object crossed the border at around 09:40 local time, and a mobile phone alert told residents of border districts and the Vilnius region to seek shelter immediately, according to Lithuanian public broadcaster LRT. It was the first such shelter order in an EU and NATO member state since Russia's full-scale invasion of Ukraine in 2022.

Airspace over Vilnius Airport was closed and flights were diverted, with LRT reporting two arriving aircraft sent to Riga. Train services were suspended and passengers were moved to shelters. As Euronews reported, President Gitanas Nauseda, Prime Minister Inga Ruginiene and members of the Seimas were taken to safe locations. The alert was lifted at around 11:00 after the object vanished from radar.

Two NATO Baltic Air Policing jets were scrambled from Estonia's Amari base but did not locate the drone. As DefenseNews reported, Defence Minister Robertas Kaunas said the NATO mission had been activated to target it. Officials did not name a responsible party: a warning reportedly came from the Belarusian military, while Kaunas suggested the drone may have entered via Latvia. The episode came a day after a NATO F-16 shot down a suspected Ukrainian drone over Estonia, part of a wider 2026 pattern of drones straying over the Baltic states.

Attribution remains unsettled. Lithuanian authorities confirmed only a UAV-characteristic radar track and did not officially name a responsible party. The leading explanations are a stray Ukrainian long-range drone aimed at Russia that drifted off course, possibly under Russian electronic-warfare jamming, or a deliberate Russian provocation, though neither is proven and reporting variously cited entry from the Belarus side and a path via Latvia. The episode fits a recurring 2026 spillover pattern affecting NATO members rather than a confirmed direct attack on Lithuania. No wreckage was confirmed for this alert, and this entry may change as further public information emerges.