Russia batters Ukraine's power grid again as officials seek momentum in US-led peace talks

KYIV, Ukraine — Russia bombarded Ukraine with more than 300 drones and ballistic and cruise missiles in its latest nighttime attack on the Ukrainian power grid, President Volodymyr Zelenskyy said Tuesday, as Moscow gives no public sign that it's willing to end the invasion of its neighbor anytime soon.

The attack knocked out heating to more than 5,600 apartment buildings in the capital, Kyiv Mayor Vitali Klitschko said. Nearly 80% of the affected buildings had recently had their heating supply restored after a major Russian barrage on Jan. 9 that plunged thousands of people into a dayslong blackout, he said.

Ukraine is enduring one of its coldest winters for years, with temperatures in Kyiv falling to minus 20 C (minus 4 F). At the same time, Russia has escalated its aerial attacks on the electricity supply, aiming to deny Ukrainians heat and running water and wear down their resistance almost four years after Moscow launched its full-scale invasion on Feb. 24, 2022.

Meanwhile, Ukrainian officials are trying to keep up the momentum of U.S.-led peace talks. A Ukrainian negotiating team arrived in the United States on Saturday. Their main task was to convey how the relentless Russian strikes are undermining diplomacy, according to Zelenskyy.

The Ukrainian leader said last week that the delegation would also try to finalize with U.S. officials documents for a proposed peace settlement that relate to postwar security guarantees and economic recovery. If American officials approve the proposals, the U.S. and Ukraine could sign the documents at the World Economic Forum in Davos, Switzerland, this week, he said.

Kremlin spokesman Dmitry Peskov said Tuesday that presidential envoy Kirill Dmitriev plans to meet with some American representatives at Davos.

He refused to name the officials Dmitriev would meet with, but media reports said they would include U.S. envoy Steve Witkoff and U.S. President Donald Trump's son-in-law, Jared Kushner.

Russian President Vladimir Putin's ''barbaric strike this morning is a wake-up call to world leaders gathering in Davos,'' Sybiha said on X.

U.N. Human Rights Chief Volker Türk said that he was outraged by the repeated large-scale attacks on Ukraine's energy infrastructure, which especially affect children, older people and those with disabilities.

The strikes ''can only be described as cruel,'' he said in Geneva. "They must stop. Targeting civilians and civilian infrastructure is a clear breach of the rules of warfare.''

Ukraine's air force command said that 27 missiles and 315 drones were shot down or jammed, while five missiles and 24 drones hit 11 locations.

The constant attacks have stretched Ukraine's air defenses and, according to Zelenskyy, some systems recently ran out of ammunition before a new shipment arrived.

''This system will be transformed,'' he said, without providing details.

Ukraine relies on sophisticated air defense systems produced by Western countries, especially the U.S., to thwart Russia's missile and drone attacks.

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Dasha Litvinova in Tallinn, Estonia, and Geir Moulson in Berlin, contributed to this report.

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