Ukrainian President Volodymyr Zelenskyy on Sunday vowed stern retaliation for a Russian missile strike in the center of the northern Ukrainian city of Chernihiv that killed seven people and wounded almost 150 others the day before. He identified a 6-year-old girl named Sofia as among the dead in the attack and confirmed that the wounded included 15 children. Meanwhile, Russian air defenses jammed a drone flying towards Moscow early Sunday causing it to crash. Later on Sunday, Starovoit reported that a drone attack on an electrical substation on Saturday had left over 5,500 people in two districts without power, which was later restored. Successful strikes have exposed the vulnerabilities of Moscow's air defense systems.

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Persons: Volodymyr Zelenskyy, Zelenskyy, Vyacheslav Chaus, Oleh Syniehubov, Mark Rutte, Rutte, Vyacheslav Gladkov, Roman Starovoit, Starovoit Organizations: NATO, Kharkiv, Gov, Internal Affairs Ministry, Dutch, Kyiv, Defense Ministry, Moscow, Russia's Defense Ministry, Kremlin Locations: Russian, Ukraine, Chernihiv, Ukrainian, Russia, Sweden, Lithuania, Sofia, Kupiansk, Vovchansk, Kharkiv, Netherlands, United States, Eindhoven, Denmark, Belgorod, Kyiv, Kursk