Russia's overnight attacks killed one person in Ukraine's northeastern region of Kharkiv and injured several more in the northern city of Chernihiv, regional Ukrainian officials said on Tuesday.

Ukraine unleashed more than a hundred drones smuggled deep into Russia in what it called its most damaging attack yet.

Though the knock-on effects are unclear, some military commentators have called the strike Russia's "Pearl Harbor." Hopes for direct peace talks, which resumed Monday, remain low.

Costing as little as $400 apiece, Kyiv’s flying machines are successfully neutralizing sophisticated Russian equipment worth thousands of times more

After Ukraine’s shocking drone assault on Russian air bases, CNN’s Erin Burnett talks with Former Russian Deputy Minister of Energy Vladimir Milov about how Vladimir Putin might respond.

Russia’s Defense Ministry in a statement confirmed the attacks, saying they damaged aircraft and sparked fires on air bases in the Irkutsk region, as well as the Murmansk region in the north. It said strikes were also repelled in the Amur region in Russia’s Far East and in the western regions of Ivanovo and Ryazan, the ministry said.

The drone strikes on Russian air force bases weaken Moscow’s ability to wage war on its neighbor and undermine its capacity to threaten more distant rivals.

Ukrainian forces have destroyed dozens of Russian warplanes parked at airfields thousands of miles from the front lines, according to a source in the country’s security services, in one of Kyiv’s most audacious and sophisticated counter assaults since the beginning of the war.