The press service of St. Petersburg’s city administration said an “incident” occurred at an industrial site in the Nevsky district of the city on Jan. 31, the Russian state-run media outlet TASS reported.

Multiple drone strikes on oil depots in Russia were reported in January, including in Krasnodar, Bryansk, Oryol, and Leningrad oblasts. Kyiv often does not comment on alleged attacks on Russian soil.

The Ukrainian media outlet RBC Ukraine claimed that a drone had struck the Nevsky Mazut oil refinery in the city. Citing unnamed sources, RBC said that the strike was carried out by Ukraine’s military intelligence (HUR).

The sources told RBC Ukraine that Russia had used its S-400 air defense system to target the drone, but it proved ineffective, and the drone fell on its alleged target.

Ukrainska Pravda also said that sources in Ukraine’s military intelligence had claimed responsibility for the alleged strike.

The Kyiv Independent reached out to Ukraine’s military intelligence for comment, but a spokesperson said he could not confirm its involvement.

Russian Telegram channels shared videos of the alleged strike and ensuing explosion.

St. Petersburg Governor Alexander Beglov confirmed that an explosion had occurred, which he referred to as an “incident.” Beglov said that there were no casualties or significant damage reported.

Read also: Russian Novatek gas plant halts operations after suspected Ukrainian drone attack

We’ve been working hard to bring you independent, locally-sourced news from Ukraine. Consider supporting the Kyiv Independent.