Belgorod missile strikes killed six people and injured four overnight in Russia’s Belgorod region, the acting governor said.
A 14-year-old child was among those hurt, Alexander Shuvaev wrote on Telegram on Monday.
Ukrainian officials said two people were killed in Russian drone attacks overnight on the Sumy region, near the Russian border, an area that has faced frequent strikes.
Belgorod missile strikes and escalating cross-border attacks
The overnight incidents followed what Russian officials described as the largest-scale attack by Ukraine this year, which left at least seven people dead. Russian strikes on Ukraine on Saturday night also killed at least seven people and wounded more than 39, according to authorities.
Russia launched a full-scale invasion of Ukraine in February 2022 and currently holds about a fifth of Ukraine’s territory.
Shuvaev said the latest Ukrainian strikes set a building ablaze and damaged a car in the village of Koloskovo in the Valuysky district, close to the border with Ukraine.
He added that the injured child was taken to hospital and two other people received medical care.
Kyiv has increased long-range drone operations inside Russia in recent weeks.
On Saturday night, Ukraine launched about 822 drones toward Russia, with 600 directed at Moscow, according to the regional governor, who said the capital endured “one of the most massive drone attacks in recent memory”.
During the same night, five people were killed in the south-western Rostov region, its governor said. Officials said a woman died in an attack on a civilian bus in Belgorod, while an 83-year-old man was killed in a drone strike in the Moscow region.
A warehouse belonging to the online retailer Wildberries was also hit.
Since July, Ukraine has repeatedly targeted the company, often described as Russia’s equivalent of Amazon. Ukraine’s defence ministry said the latest strike left seven of the 10 largest Wildberries logistics hubs “disabled”.