Officials report one death and dozens of injuries from Russia's extensive overnight strikes targeting multiple sites in Ukraine.

Prime Minister Yulia Svyrydenko called it an "especially tough night for Kyiv," as rescuers dig through debris at a residential building damaged in a missile and drone strike on the capital.

The barrage followed Wednesday's major assault - one of Russia's largest since launching its full-scale invasion in 2022, featuring 892 drones over 24 hours.

Ukraine has now seen fatalities for the third straight day, with Moscow escalating attacks after a three-day ceasefire ended Monday.

Early Thursday, search and rescue teams in the capital began operations at a nine-storey apartment block hit overnight, seeking trapped individuals.

Mayor Vitaliy Klychko, who inspected the site, reported 18 apartments destroyed and the city's water supply interrupted by the strike.

President Volodymyr Zelensky stated dozens have been extracted alive from the structure so far.

Other residential properties, a school, a veterinary clinic, and infrastructure also suffered damage, he noted.

Zelensky described Russia's intense operation as "definitely not the conduct of those who see the war ending soon."

He pressed Ukraine's partners to condemn the assault publicly.

Prime Minister Svyrydenko added that strikes hit Kremenchuk, Bila Tserkva, Kharkiv, Sumy, and Odesa regions alongside Kyiv.

"Ukraine must bolster its air defenses with help," she posted on social media. "It's the only path to safeguard our people and cities."

Foreign Minister Andriy Sybiha blasted President Vladimir Putin over the "barbaric attack," saying it reveals Moscow's focus on "aggression and terror" instead of peace.

Sybiha highlighted the timing during a vital summit between U.S. President Donald Trump and China's Xi Jinping, calling on them to pressure Russia.

"The U.S. and Chinese leaders surely hold enough sway over Moscow to force Putin to stop the war," he asserted.

The strikes resumed soon after a U.S.-arranged three-day truce expired late Monday.

Both sides noted violations during the lull - mainly along the sprawling front line - but no significant air campaigns.

Russia restarted strikes Tuesday, killing nine in Ukraine; six more deaths occurred Wednesday nationwide.

In unrelated Kyiv news, a court imposed 60 days pretrial detention on Andriy Yermak, top aide to Zelensky, in a corruption case.

Bail stands at £2.35m ($3.2m) with an electronic tag option, the court ruled.

Anti-corruption bodies list Yermak as a suspect in a £7.5m money-laundering plot linked to a luxury project near Kyiv.

His lawyer dismissed the charges as "baseless."

Yermak rejected the claims after court, promising an appeal: "I'm staying in Ukraine. Nothing to hide."

He admitted lacking bail funds but intends to raise them "among friends and acquaintances."