Officials cited by both sides put the death toll from reciprocal attacks in Russia and Ukraine at at least 22, including children.
Krasnodar Governor Veniamin Kondratyev said drone debris fell in Arkhipo-Osipovka, near Gelendzhik, on August 3, killing seven people including three children and injuring about 40.
Sergei Aksyonov, the Moscow-backed head of occupied Crimea, said four people had been killed there and two injured.
Alexander Shuayev, Belgorod's acting governor, said attacks on settlements near the border killed four civilians and injured 17 others.
Those three Russian regional accounts list 15 deaths, which conflicts with the stated figure of 11 deaths in Russia and the overall total of 22.
Ukrainian officials said a Russian strike on a petrol station in Kryvyi Rih district killed three people, including an emergency worker and his eight-year-old son.
Dnipropetrovsk regional governor Oleksandr Hanzha said the attack caused a fire that damaged the petrol station and nearby vehicles.
Officials also reported eight deaths, including two children, in an overnight attack on Zaporizhzhia.
The two Ukrainian incidents account for 11 deaths in the figures provided.
Russia's Defence Ministry claimed that its forces had taken Bilyi Kolodiaz and Uspenivka in the Kharkiv region, a battlefield claim not independently established in this evidence.
Zelenskyy alleged that Wildberries supports Russia's war effort, citing the availability on the platform of goods that can have military and civilian uses.