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St. Petersburg Faces Widespread Mobile Internet Disruptions During International Economic Forum

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Black smoke rises after Ukraine reportedly launched unmanned aerial vehicle attacks on the opening day of the St. Petersburg International Economic Forum in St. Petersburg, Russia, on June 3, 2026. (Source: Getty Images)
Black smoke rises after Ukraine reportedly launched unmanned aerial vehicle attacks on the opening day of the St. Petersburg International Economic Forum in St. Petersburg, Russia, on June 3, 2026. (Source: Getty Images)

Residents of St. Petersburg were left without mobile internet at the start of the St. Petersburg International Economic Forum (SPIEF) on 3 June, with outages beginning around 1 a.m. and continuing into the morning.

This was reported by The Moscow Times on June 3, citing Downdetector data.

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Thousands of users reported disruptions, saying that websites and mobile applications failed to load. Some residents also noted difficulties paying for public transport, with cash becoming the only viable option in certain cases.

According to The Moscow Times, even services included in Russia’s so-called “white list” of accessible resources were unavailable.

Around 3 a.m., Leningrad region governor Alexander Drozdenko warned of a “reduction in mobile internet speed” due to a drone threat in the area.

The disruptions coincided with Ukraine’s continued long-range strike campaign, which on 3 June reached one of Russia’s most politically symbolic cities, with the Petersburg Oil Terminal in St. Petersburg coming under attack as Moscow hosted foreign delegations for its flagship economic forum.

Ukrainian long-range drones struck one of the largest oil product terminals in Russia’s Baltic region, igniting fuel storage tanks shortly after the city opened its international economic forum for visiting business representatives, according to footage published by the OSINT group Exilenova+ and later confirmed by Ukrainian President Volodymyr Zelenskyy.

Videos recorded by local residents showed large fires spreading across the facility following the strike. Witnesses reported a series of explosions, while additional footage captured Russian air defende systems attempting to intercept incoming drones over the city.

The target was JSC Petersburg Oil Terminal, a key infrastructure facility handling oil exports and storage in the Baltic region.

Leningrad region governor Alexander Drozdenko said around 7 a.m. that Russian air defende forces had allegedly intercepted 50 drones over the region. He did not comment on reports of a fire at the St. Petersburg facility following the attack.

Separately, Ukraine’s Unmanned Systems Forces reported a strike on the Russian Navy corvette Boykiy, a guided-missile warship of the Baltic Fleet, during a drone operation targeting the Kronstadt naval base near St. Petersburg on 3 June.

According to Robert Brovdi (“Madyar”), commander of the Unmanned Systems Forces, operators from the 1st Centre of the Unmanned Systems Forces hit the Project 20380 corvette Boykiy while it was undergoing scheduled maintenance at the Veleshchynskyi Dry Dock in Kronstadt.

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