Three people were killed overnight in a large-scale Ukrainian drone attack on the Moscow region, Russian officials have said.
A woman died in a house in Khimki, north of the capital, where a person was trapped under rubble, regional governor Andrei Vorobiev said. A man and a woman were killed in the village of Pogorelki.
Moscow Mayor Sergei Sobyanin said 12 people were injured in strikes on a city oil refinery. Russia's military said 556 drones were intercepted.
In Ukraine, eight people were injured in Russian drone attacks and shelling in the central Dnipropetrovsk region, officials said.
Earlier this week, a massive Russian drone and missile attack killed 24 people in Ukraine's capital Kyiv.
In a post on Telegram early on Sunday, Vorobiev wrote that "since three o'clock in the morning, air defence forces have been repelling a large-scale UAV [drone] attack on the capital region".
He said four people - three men and a woman - were injured in the region, and a number of houses damaged.
A private house was on fire in the village of Subbotino, south-west of Moscow, the governor added.
Moscow Mayor Sobyanin said 12 people were injured when drones hit an entrance to the city's oil refinery. Three nearby houses were damaged.
Meanwhile, Sheremetyevo - Russia's busiest airport that serves Moscow - reported drone wreckage on its territory. It said no-one was injured.
"The situation in the passenger terminals is calm. Sheremetyevo Airport is providing stable passenger and aircraft services," airport authorities said.
Ukraine has not publicly commented on the latest drone strikes in the Moscow region.
Ukrainian President Volodymyr Zelensky has pledged to retaliate for the deadly Russian attack on Kyiv and other Ukrainian regions.
He said on Saturday that this week Ukraine had already destroyed high-value Russian military equipment, including aircraft, a helicopter and a cargo ship.
"Our long-range sanctions also hit Russian oil facilities and ships," Zelensky said, referring to Ukrainian drone attacks deep inside Russia, adding that "most of the operations are still ongoing".
In recent months, Ukraine's military has intensified its strikes on key energy facilities across Russia.
Kyiv says they are legitimate targets as they allow Russia to continue its war effort.
Also overnight, Russia carried out more than 30 drone and shelling attacks on four districts of the Dnipropetrovsk region, top local official Oleksandr Hanzha said.
He said eight people were injured, and a number of houses were damaged or destroyed.
Three people were injured in the regional capital of Dnipro, and a number of fires were reported in the city.
On Saturday evening, a woman was injured in a Russian drone attack in Ukraine's southern Zaporizhzhia region, local officials said.
In its latest update, Ukraine's air force said that Russia had launched 287 drones since late Saturday.
It said that 279 drones were shot down or intercepted, but there were eight direct hits in seven locations.
Russian President Vladimir Putin launched a full-scale invasion of Ukraine in 2022, and Moscow currently controls about 20% of Ukrainian territory.
