Ukrainian-launched drones hit the Russian Baltic Sea port of Primorsk on Sunday, briefly igniting a blaze at the oil-export facility before it was put out, regional authorities reported.
Alexander Drozdenko, governor of the Leningrad region, wrote on the Telegram messaging app that the fire at Primorsk - a major outlet for Russian crude exports - had been extinguished and that there had been no oil spill as a result of the attack.
Drozdenko also said that Russia's air defences had intercepted more than 60 drones overnight over the northwestern Leningrad region.
Primorsk is one of the country's key export gateways and has the capacity to handle 1 million barrels per day of oil supply. The port has been struck multiple times in recent months as Ukrainian forces have intensified strikes on Russian energy infrastructure and other targets, a pattern that has continued while U.S.-brokered negotiations to end the conflict have stalled.
Separately, Ukraine's president, Volodymyr Zelenskiy, reported on Sunday that two shadow fleet tankers were struck in waters at the entrance to the Black Sea port of Novorossiysk. In a message on Telegram he said:
"These tankers had been actively used to transport oil - not anymore."
"Ukraine’s long-range capabilities will continue to be developed comprehensively - at sea, in the air, and on land."
Authorities in other parts of Russia said they also faced drone incidents over the weekend. Moscow regional governor Andrei Vorobyov reported on Saturday evening that a 77-year-old man died in a village after a drone strike. The mayor of Moscow, Sergei Sobyanin, said four drones were downed while en route to the capital.
Vasily Anokhin, governor of the western Smolensk region, said three people, including a child, were injured on Sunday when a drone struck an apartment block. Those reports followed accounts of intensified combat elsewhere along the front lines; Ukraine's top army official said Russian troops were making incremental advances toward the city of Kostiantynivka in the eastern Donetsk region on Saturday.
The sequence of reports from regional governors and national leaders paints a picture of coordinated long-range drone operations and active air-defence responses across multiple Russian regions, alongside naval and maritime strikes reported by Kyiv.