Almost 600 Ukrainian drones targeted various locations in Russia overnight, killing three people in the Moscow region and one in the Belgorod region, Russian authorities said on Sunday. The attacks come after Ukrainian President Volodymyr Zelenskyy vowed on Friday to launch retaliatory strikes, a day after a Russian assault on Kyiv killed 24 people and injured around 50 more. According to local Governor Andrei Vorobyev, a drone attack killed a woman in her home in Khimki, just northwest of