Ukrainian drone strikes hit Russia's Kirishi oil refinery, causing a fire, according to Russian and Ukrainian officials. The refinery, one of Russia's largest, produces nearly 355,000 barrels of crude oil daily. This follows weeks of similar Ukrainian attacks on Russian oil infrastructure. The incident occurred alongside reports of a derailed locomotive in the Leningrad region, resulting in a fatality, and a bomb blast near railway lines in the Oryol region, killing three. Russia also faced significant cyberattacks targeting its electronic voting system during regional elections.

Prepared by Rachel Morgan and reviewed by editorial team.