Ukraine conducted a major drone attack on St. Petersburg and Leningrad Region on June 6, with Russian air defense claiming to have shot down 141 drones. At least four people were killed and three injured according to regional officials. Strikes hit Defense Ministry facilities in Bolshaya Izhora, naval installations in Kronstadt, and possibly the Peterhof oil depot and a marine research institute. The attack, one of the largest of the war, occurred on the final day of Russia's International Economic Forum, shortly after Putin rejected Ukrainian President Zelensky's proposal for direct peace negotiations.