86 Drones Downed Near St. Petersburg as Putin's Forum Closes
Ukraine launched its largest drone wave of the war against Russia as Putin's showcase economic forum closed in St. Petersburg — 376 UAVs intercepted in a single night.
At a Glance
On the night of June 5–6, Russian forces intercepted 86 Ukrainian drones over the Leningrad region, which includes St. Petersburg, according to the region’s governor, Aleksandr Drozdenko.
The attack came on the closing day of SPIEF — the St. Petersburg International Economic Forum, Russia’s flagship annual investment gathering, held June 3–6, 2026.
Russia’s Defense Ministry reported a total of 376 Ukrainian drones intercepted across the country in a single night.
This image is used for illustrative purposes only.
Ukraine strikes Putin’s showcase — twice
This was no coincidence of timing. SPIEF — once nicknamed “Russia’s Davos” — is the annual event through which Moscow tries to project an image of economic strength intact despite Western sanctions. Some 20,000 guests from 130 countries gathered this year, from June 3 to 6, 2026: government representatives, corporate executives and officials from Asia, Africa and the Global South.
On the very first day of the forum, Wednesday, June 3, Ukrainian drones struck the St. Petersburg Oil Terminal — one of the largest petroleum transshipment hubs in northwestern Russia — and the Kronstadt naval base on the Baltic coast, with Russian air defenses intercepting approximately 50 to 60 UAVs over the Leningrad region that night alone. Black smoke was visible from the forum venue itself. Ukrainian President Volodymyr Zelensky described the strikes as “sanctions,” saying his forces had hit “priority targets.” The closing night of June 5–6 brought a second, larger wave — a signal that Ukraine’s strategy may be to overwhelm Russian air defenses while simultaneously embarrassing Moscow on its own diplomatic stage.
376 drones in one night: the logic of saturation
The war of drones has changed scale. Russia’s Defense Ministry reported intercepting 376 Ukrainian drones in a single night — across regions stretching from Moscow to Smolensk, Bryansk, Voronezh, Krasnodar and Leningrad — illustrating the rapid growth of Ukraine’s domestic drone production capacity.
The tactic is well-documented and openly embraced by Kyiv: launch massive waves to exhaust Russian air defense systems, force the dispersal of anti-aircraft resources, and maximize the probability of breaching the perimeter. The 86 drones intercepted around St. Petersburg alone represent an unprecedented level of pressure on Russia’s second-largest city.
Alexander Beglov, governor of St. Petersburg, told residents to “stay home and not go outside.” Pulkovo International Airport, south of the city, announced a temporary halt to air traffic.
SPIEF as a symbolic target: diplomacy under fire
The St. Petersburg forum occupies a particular place in Russia’s diplomatic architecture. Since the full-scale invasion of Ukraine in February 2022, SPIEF has become one of the few spaces where Moscow can still display meaningful international engagement — Western nations having largely boycotted or scaled back their participation. The 2026 edition hosted Han Zheng, Vice President of the People’s Republic of China, who met with President Putin on the sidelines on June 5.
Ukraine’s drone strikes on St. Petersburg during SPIEF week amounted to a political statement as much as a military one: the war cannot be put on hold for an investment forum, and black smoke is a fitting response to the “economic resilience” messaging delivered in the air-conditioned halls of St. Petersburg’s congress center.
The real question: can Russia’s air defenses hold?
The scale of the figures announced — 376 interceptions in a single night, according to Russia’s Defense Ministry, 86 over the Leningrad region alone — raises a question Russian authorities do not address directly: how many drones were not intercepted? Russian Defense Ministry statements do not report the number of UAVs that reached their targets. Ukrainian sources cited infrastructure damage at military and energy facilities; Russian sources described damage as “limited” or affecting private homes with no casualties.
What can be said with reasonable confidence: an air defense system intercepting 376 drones in one night is, by definition, a system under maximum pressure. And an economy at war that hosts an investment forum while Ukrainian drones strike its main oil terminal sends a complicated message to its own guests.
A defense that intercepts 376 drones in a single night is a defense under maximum pressure — and the black smoke rising behind the conference hall said what no keynote could.
The Bottom Line
SPIEF 2026 was bookended, in the most literal sense, by two waves of Ukrainian drones — one on opening day, one on closing night. The question is not whether Russia can keep staging this kind of event. It is how long the businesses, governments and investors drawn from the Global South, Asia and beyond — the core audience Moscow now courts — will keep coming to St. Petersburg if the city is under attack when they arrive and when they leave.
Sources: France Info · AFP · Radio Canada