Russia on Saturday launched its largest drone attack against Ukraine’s capital of Kyiv since the start of its invasion, according to local officials.

Much of Ukraine was under air alert early in the morning of Dec. 8 after Russia launched drone and missile attacks on several areas of the country, including the Dnipro, Kharkiv, and Kyiv oblasts.

Ukrainian military officials say Russia has launched its most intense drone attack on Ukraine since the beginning of its full-scale invasion last year.

Ukrainian intelligence has planned large-scale drone attacks on Russian regions on the night of 25-26 November in retaliation for the unprecedented Shahed drone attack Russia launched on Kyiv the night before.

Ukraine said Russia launched a fresh barrage of missiles, killing at least one person, though defenses prevented any from reaching the capital city.

Missiles hit Pavlohrad and Kharkiv while Volodymyr Zelenskiy warns of assault on energy infrastructure