At least seven people have been killed and 21 others wounded in overnight Russian and Ukrainian strikes, according to officials from both sides.
In Russia's Voronezh region, a drone crash killed one person and injured two others, while sparking fires at two warehouses in the Novousmansky district, regional Governor Aleksandr Gusev said.
The blaze at one facility covered about 16,000 square metres, while the other spread across roughly 20,000 square metres, Gusev said. Three trucks and a car were also damaged by falling debris.
The warehouses are believed to be operated by Wildberries, Russia's largest online marketplace, which said its logistics facilities in the region had been evacuated as a safety precaution.
Ukraine has intensified drone strikes on logistics facilities operated by Wildberries since mid-July, in a campaign that has spread across several Russian regions.
Since July 18, Ukrainian drones have targeted more than 15 Wildberries logistics centres, including facilities in the Moscow, Tambov, Leningrad, Krasnodar, Volgograd and Stavropol regions, as well as Crimea.
Kiev has accused the e-commerce company of playing a role in Moscow's military supply chain, while Moscow and Wildberries maintain that the facilities are purely civilian.
Russia's Defence Ministry separately said its forces had shot down 396 Ukrainian drones across Russia and over annexed Crimea.
Deadly strikes in Ukraine
In Ukraine, a "massive" Russian attack involving missiles and guided bombs killed six people and injured 19 others in the city of Zaporizhzhia, regional Governor Ivan Fedorov said.
The attack damaged four apartment buildings and several non-residential buildings, Fedorov said.
Independent verification of claims from either side remains difficult amid the ongoing conflict.
