Ukrainian agents cause millions in damage during secret sabotage operation in Russia, HUR source says

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Ukraine’s military intelligence (HUR) ignited an electrical substation during a sabotage operation in the Russian city of Kaliningrad, causing $5 million in damage and cutting electricity to a military production site, a source in HUR told the Kyiv Independent.

In the early hours of June 14, Ukrainian agents drained the coolant from the substation’s power transformer before setting the facility on fire. The inferno inflicted major damage on the facility and caused a power cut, impacting nearby Russian military sites.

"We once again remind you that Russia no longer has a rear either in the east, in the west, or anywhere else on the planet. Everything Russian involved in the war against Ukraine will burn, sink, and be destroyed regardless of its level of protection or location," the source said.

0:00 / 1× Ukrainian agents sabotage an electrical substation in Kaliningrad, Russia. June 14, 2025. (HUR)

Ukraine continues to carry out numerous secretive attacks within Russia and occupied Ukrainian territories, targeting military sites, like airfields, as well as key infrastructure like railways and oil refineries.

The attacks involve HUR, Ukraine’s Security Service (SBU) as well as partisan and sabotage groups.

HUR was behind explosions near Desantnaya Bay in Russia's far eastern Vladivostok on May 30, which reportedly damaged military personnel and equipment. The operations took place approximately 6,800 kilometres from the Ukrainian border, making it Ukraine's furthest incursion into Russian territory, if confirmed.

On June 1, the SBU launched Operation Spiderweb, a game-changing drone attack on four key Russian military airfields, damaging 41 planes, including heavy bombers and rare A-50 spy planes.