A drone strike triggered a fire at Russia's Baltic port of Ust-Luga, the regional governor said reporting new damage at the major exporting hub hit for a second time in days.
Ukraine has intensified retaliatory attacks on Russian infrastructure - including refineries, oil depots and ports - saying they are fair targets in Ukraine's bid to cut energy proceeds that fund Russia's offensive.
"There is damage to the port of Ust-Luga. There were no casualties," regional governor Alexander Drozdenko said on social media.
He said that "rescuers are working to extinguish a fire" at the port -- a major hub for Russian fertilisers, oil and coal exports.
Thirty six drones were destroyed overnight in the region, Mr Drozdenko added.
The northwestern port suffered damage this week when it was targeted by drones in an attack claimed by Ukraine's military.
There has been no immediate comment from Ukraine on the latest hit.
Ukraine also this week struck another major Russian Baltic port, Primorsk. The black smoke from the fire could be seen on satellite images.
A Ukrainian drone also killed a man in Russia's Belgorod region, its governor said.
The civilian was killed after two drone strikes hit the border city of Grayvoron, Belgorod governor Vyacheslav Gladkov said on Telegram, blaming the Ukrainian military.
Belgorod, which borders Ukraine's Kharkiv region, has regularly been hit with drone attacks, with Russian officials reporting multiple civilian injuries and damage to homes and vehicles across the region in recent weeks.
In Ukraine, a Russian drone struck a car, killing one woman and injuring one man in the southern city of Kherson today, emergency services said.
Russian forces also launched drone attacks on the northern Chernihiv and northeastern Sumy regions of Ukraine, igniting fires, according to the SES.
Overnight, Russia sent an air-launched ballistic missile along with 442 drones toward Ukraine, the Ukrainian air force said and the Kyiv Independent reported that some 60 drones swarmed the port city of Odesa until the early morning.
At least two people were killed and 14 others, including a child, were wounded after an Odesa maternity hospital was hit by a drone strike on Saturday. Rescuers on Sunday continued to search the rubble for victims.
Finland says drones crashed on its territory 'likely' Ukrainian
Two unidentified drones crashed near Kouvola in southern Finland today in what the defence ministry called a "suspected territorial violation", with the prime minister saying they may have been stray Ukrainian drones.
"Drones have strayed into Finland's territory. We take this very seriously," Defence Minister Antti Hakkanen said in a statement, adding that security authorities had been sent to the scene.
Prime Minister Petteri Orpo told Finnish public broadcaster Yle it "is likely that these are Ukrainian drones, but this will be investigated and then announced later."
Finland shares a 1,340-kilometre (830-mile) border with Russia.
Orpo noted that Ukraine has recently carried out attacks on Finland's neighbouring areas in Russia, and said Russian jamming of drone signals may have caused Ukrainian drones to go astray.
Hakkanen said the investigation was ongoing "and further details will be provided once the information has been verified."
According to the defence ministry, "a few low-flying slow objects were observed in Finnish airspace in the sea area and in southeastern Finland on Sunday morning."
The air force sent up an F/A-18 Hornet fighter on an identification mission, it added.
"One drone has fallen to the ground north of Kouvola and another drone east of Kouvola. The police have cordoned off the areas for further investigation," the defence ministry said.
Additional reporting: EBU
