Ukraine said Monday that Russian attack drones fell and exploded in Romanian territory during Moscow's overnight strike on the port of Izmail.

Romania and Russia, however, denied Kyiv's claims.

Ukraine's foreign minister Dmytro Kuleba has told the Interfax news agency that Kyiv was ready to "share" information on the attack with Bucharest, insisting that it had affected Romanian territory.

"It is pointless to deny this as there is photographic evidence of what fell there. And we are ready to share it," Interfax quoted Kuleba as saying.

Ukrainian foreign ministry spokesperson Oleg Nikolenko said on social media "Shaheds" fell and detonated on Romanian territory overnight and shared an image of what appeared to be a bright cloud of smoke near a body of water.

A spokesperson for the State Border Guard Service of Ukraine told Agence France-Presse that Nikolenko's account was "reliable" and that two detonations had been observed.

"We recorded two detonations on the territory of Romania near the Izmail port during the Russian attack overnight," Andriy Demchenko said.

In its denial, Romania's defense ministry said, "At no time did the means of attack used by the Russian Federation pose a direct military threat to Romania's national territory or territorial waters."

Romania is a member of the North Atlantic Treaty Organization. An attack on any NATO member is an attack on the entire military bloc.

Meanwhile, Russia's air defense systems destroyed three drones early Tuesday which were trying to reach Moscow, the Russian capital's mayor said.

Sergei Sobyanin said on Telegram there had been "no casualties."

Russia's defense ministry said one drone was flying over the Kaluga region, southwest of Moscow, while a second was destroyed northwest of the capital above the Moscow region's Istrinsky district.

A third was destroyed in the Tver region, northwest of Moscow.

WITH AFP