The incident adds to concern that Moscow’s war on Ukraine risks spilling over to entangle neighbouring NATO states.

A Romanian fighter jet has shot down a drone, suspected to be Russian, that breached the country’s airspace.

The incident on Friday marked the first time the Eastern European country has intercepted an intruding aircraft since Russia’s full-scale invasion of Ukraine began, President Nicusor Dan noted.

However, concern that Moscow’s war on Ukraine risks entangling neighbouring NATO states is on the rise. Romania is one of several alliance members to confront repeated stray drones recently, as Russia and Ukraine launch hundreds of drones daily.

Dan reported that a Romanian F-16 jet shot down the drone after it entered the country’s airspace, adding that the fighter had shot over an uninhabited area.

A Romanian military source told the Reuters news agency that Russia was the suspected point of origin, given the pattern of previous incursions in the region.

Romania’s Ministry of National Defence said a radar first detected the drone about 20km (12 miles) east of the Black Sea port of Sulina, before it crossed into national airspace on a path through Braila, Fetesti and Buzau county.

Two Italian Eurofighter Typhoon jets, deployed to Romania under NATO’s air policing mission, were joined by two Romanian F-16s. One F-16 engaged the target with an air-to-air missile, downing it over unpopulated ground near the village of Padina. No casualties or injuries were reported.

Romania, an EU and NATO member sharing a border with Ukraine, has recorded dozens of drone incursions since the war began. This incident marked the first successful interception.

In late May, a drone struck an apartment building in the city of Galati, injuring two people – the first time such a strike hit a populated area in a NATO country.

NATO and European Union officials condemned the incident. The European Commission said it showed Russia’s war had “crossed yet another line”.

A month later, a Ukrainian sea drone exploded at the port of Constanta. Kyiv said that it had launched the vessel, which had been knocked off course by Russian jamming.

The Baltic states have also reported repeated airspace violations in recent months, incursions that contributed to the collapse of Latvia’s government in May.

NATO chief Mark Rutte has said Moscow’s “reckless behaviour is a danger to us all”. United States ambassador to NATO, Matthew Whitaker, has pledged the alliance will “defend every inch” of its territory.