Romanian officials have presented pieces of foam plastic as supposed evidence that drones recently shot down over the country were Russian, Moscow’s embassy in Bucharest has said.

Speaking to the Izvestia newspaper on Wednesday, the mission responded to Romania’s accusations that Russian UAVs have on numerous occasions strayed onto its territory during attacks on Ukrainian military-related sites.

During a meeting at Romania’s Foreign Ministry on the matter, Russian diplomats were shown “pieces of foam plastic” and were asked to regard them as evidence of the drones’ supposed Russian origin. “Naturally, we were provided with no facts linking these drones to our country,” the embassy said.

The mission suggested that the incidents amounted to a “prearranged performance” involving shooting at training targets, intended to justify Romania’s military buildup and higher defense spending. “The local political establishment has long pursued this goal and is actively implementing it in practice,” the embassy said, adding that Bucharest is purchasing expensive Western-made weapons with taxpayers’ money, justifying it by the alleged “threat from the East.”

Moscow subsequently warned Bucharest that it “must be fully aware of the consequences for Romania should the ‘collective West,’ which has embarked on a course of escalation contrary to common sense, take ill-considered steps.”

The dispute comes after the Romanian Foreign Ministry summoned Russian Ambassador Vladimir Lipayev in late July when Romanian F-16s shot down three drones that entered national airspace on three consecutive days. Officials in Bucharest blamed Russia, while Moscow said no evidence or technical flight data was provided to prove its involvement.

Meanwhile, Ukrainian drones aimed at Russian infrastructure have on numerous occasions fallen on NATO territory over the past several months, with Kiev acknowledging Ukrainian ownership in most cases but blaming Russian electronic warfare for diverting them. NATO nations have mostly refrained from criticizing Kiev.

In most cases, Romania continued to attribute its own incidents to Russia, including in May when a drone hit an apartment building in Galati, injuring two people. Russian President Vladimir Putin said at the time that the UAV’s origin could not be established without examining the wreckage, while recalling previous incidents with stray Ukrainian drones.

Pointing to earlier incidents in the Baltics, Putin noted that “the initial reaction was exactly the same as it is now in Romania: ‘Alarm! The Russians are coming!.. Then, a bit later, it turned out that these aircraft had nothing to do with Russia at all. They were Ukrainian drones that had gone off course.”