Moscow targeted regions across Ukraine with some 101 drones, Zelenskyy said. Russia on Friday had launched its largest overnight strike of the war, firing 539 drones and around a dozen missiles, according to Ukraine's air force.

(Reuters) -Russian air defence units downed six Ukrainian drones headed for Moscow on Sunday, mayor Sergei Sobyanin said. Sobyanin, writing on the Telegram messaging app, said specialists were examining fragments of the drones near the Russian capital.

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.