(LONDON) -- Ukraine launched hundreds of drones on Thursday targeting more than a dozen Russian regions, including Moscow, where they struck an oil refinery, sending plumes of black smoke into the air over the Russian capital.
Russia’s Ministry of Defense said the country's defenses destroyed some 555 drones in the early morning hours. About 180 of those were shot down as they approached Moscow, the city’s mayor, Sergei Sobyanin, said in an update in Russian on the Telegram messaging app.
Ukraine laid claim to the aerial attack, with President Volodymyr Zelenskyy saying it marked the second time within a week that Kyiv had targeted the Moscow Oil Refinery, a sprawling facility in the city’s southeast that’s run by a subsidiary of state-owned Gazprom. Video verified by ABC News showed blasts at the Kapotnya district refinery.
"This is a fully justified response to Russian attacks on our cities and communities, and another important result of our warriors' work against facilities that sustain Russia’s war machine," Zelenskyy of Ukraine said on social media.
Russia on Thursday also continued its nightly long-range attacks on Ukraine, firing at least seven ballistic missiles and 239 drones at Ukraine overnight, the General Staff of the Armed Forces of Ukraine said in an update posted on social media. Ukraine said its defenses shot down or otherwise destroyed at least 216 drones or missiles.
Thursday's Ukrainian strike ranked among the largest single-night long-range attacks undertaken by Kyiv since the war began more than four years ago. The country's military said it targeted the refinery because it is "involved in supporting the Russian military."
Zelenskyy sought in his social post to position Ukraine's long-range strikes, which have escalated in recent weeks, as a means to push Moscow toward diplomacy. He said Ukraine's Western partners have "have noted the precision and effectiveness of our mid-range strikes and long-range sanctions."
The attack came in the hours before defense ministers of NATO states were set to gather in Brussels, Belgium, for a summit, where Ukraine's security was among the topics to be discussed.
The Moscow public prosecutor’s office said "several" districts in the city were attacked by drones on Thursday, claiming there had been damage to apartment buildings. The office said there were casualties reported, but did not detail them.
Russia's Department of Defense said it had launched in response a drone-and-missile attack against "fuel and energy facilities used by the Ukrainian Armed Forces."
ABC News' Victoria Beaule, Helena Skinner, Anna Sergeeva, Oleksiy Pshemyskiy and Jamie Dorrington contributed to this report.
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