Ukraine drone strikes kill four, wound seven in Russia: officials

Ukrainian drone strikes killed four people and wounded seven in Russia on July 13, most in the Moscow region, local officials said, as Kiev upped its strikes in response to Kremlin's barrages.

Ukraine has been striking Russia, particularly energy targets, which Kiev says is fair retribution for Moscow's more than four years of attacks on its territory.

"In the settlement of Pionersky in Istra, three people were killed and three more wounded as a result of a drone falling," Moscow Region Governor Andrey Vorobyov posted on Telegram.

Two more people had been wounded in another part of the region, he added.