Watch: Footage shows huge plumes of smoke rising into the sky in the Moscow region
At least seven people have been killed in Russia after what officials called the "largest-scale" attack launched by Ukraine this year.
Some 822 drones were used – 600 aiming for Moscow, according to its regional governor who said the Russian capital had suffered "one of the most massive drone attacks in recent memory". A warehouse belonging to Russian online retailer Wildberries was hit.
Russian attacks on Ukraine also killed at least seven people and injured more than 39.
Russia has intensified missile attacks across Ukraine in recent weeks, with Kyiv also stepping up drone strikes deep inside Russia.
The governor of Rostov in south-western Russia said five people had died following overnight strikes. Other deaths were reported in the Belgorod region bordering Ukraine and Moscow.
A Wildberries warehouse in Koledino, 25km (15.5 miles) from the centre of Moscow, was hit in an attack, injuring three, Mayor Sergei Sobyanin said. Videos shows a fire and a large plume of smoke over the warehouse.
Wildberries, known as Russia's version of Amazon, has been repeatedly targeted since July. Kyiv said at the time it was targeting logistics hubs used by Russians to buy military equipment and disrupting supplies to the Russian army.
Both warring sides accuse each other of targeting civilians.
Firefighters work at the site of a book market hit by a Russian missile strike in Kyiv
In Kyiv, air-raid sirens sounded four times overnight as the Ukrainian capital came under Russian attack. At least six people, including a child, were reportedly injured, Mayor Vitali Klitschko said.
Russia said its attacks on Kyiv on Saturday night targeted a FirePoint facility producing parts for Ukrainian Flamingo missiles and a factory making components for drones.
A book market in the city's Pochayna district was damaged in the strikes. Burnt books could be seen lying on the ground, while firefighters continue to douse the flames.
Sixty-nine-year-old Valentina's husband owned a market stall.
Looking through the rubble, she told the BBC: "All these books in the street were from my husband's stall in the market – I recognise them on the floor."
