Russian air defence units downed six Ukrainian drones headed for Moscow on Sunday, mayor Sergei Sobyanin said.

Ukraine said it struck a Russian air base on Saturday, while Russia continued to attack Ukraine with hundreds of drones overnight as part of a stepped-up bombing campaign that has dashed hopes for a breakthrough in efforts to end the more than 3-year-old war.

Ukrainian drones struck the city of Krasnozavodsk in Russia's Moscow Oblast on July 7, possibly targeting the Krasnozavodsk Chemical Plant, Russian independent media outlet Astra reported. The plant,