Wave of Ukrainian Strikes Kills at Least 4, Russia Says

At least four people were killed by Ukrainian drone strikes across Russia, including in Moscow, on Sunday in the biggest attack by Ukraine this year and one of its largest of the war, according to the local authorities and Tass, the Russian state-owned news agency.

Russia's Ministry of Defense said 556 Ukrainian drones had been intercepted or shot down in more than a dozen regions, according to the local authorities and Tass. President Volodymyr Zelensky of Ukraine said that the attacks on the Moscow region were an "entirely justified" response to Russia's attacks on Ukrainian cities.

"We are clearly telling the Russians: their state must end its war," he wrote on social media.