Ukraine admits its largest Russian air strike of the year, just hours after holding its first trilateral talks with the US in Abu Dhabi.

Local authorities reported on Saturday that Russia carried out its largest overnight aerial assault on Ukraine this year, just hours after negotiators from Kyiv, Moscow, and Washington held their first known trilateral meeting since the war began, agreeing to continue discussions over the weekend..

Missile and drone strikes hit the Ukrainian capital, prompting the country’s air force to activate air defenses. CNN reporters in Kyiv said they heard several explosions.

Kyiv Mayor Vitali Klitschko reported that strikes left at least one person dead and four injured. Falling debris sparked fires, damaged buildings, and left nearly 6,000 apartment blocks without heat, while some areas also lost access to water. On Saturday morning, local temperatures in Kyiv were a frigid -12°C (10°F).

Kharkiv, Ukraine’s second-largest city in the northeast, was hit in an attack that damaged a maternity hospital and a dormitory for displaced people, according to Mayor Ihor Terekhov. At least 19 people were injured, including one child.

In total, Russia launched more than 370 drones and 21 missiles overnight, with other targets including Sumy and Chernihiv, said Ukrainian President Volodymyr Zelensky on Saturday. He added that the attacks had focused on Ukraine’s energy sector, which is “critical” during the cold winter.

The attacks came shortly after delegations from both countries finished their first day of talks with US representatives in Abu Dhabi, United Arab Emirates.

Russia sent a military team to attend, including a top spy and military intelligence chief; Ukraine sent top negotiators including diplomats and security officials; and the US was represented by President Donald Trump’s envoy Steve Witkoff, Trump’s son-in-law Jared Kushner, and White House adviser Josh Gruenbaum.

The meeting likely centered on territory, specifically the mineral-rich Donbas region in eastern Ukraine, known for its rivers and fertile farmland. Russia has long pressed Kyiv to relinquish the areas of the Donbas still under its control, a demand Ukraine has consistently refused.

The Trump administration pushed Ukraine to agree to a peace deal, even though many were worried it might end up benefiting Moscow.

Almost four years after starting a full-scale invasion of its neighbor, Russia still controls about 20% of the territory internationally recognized as part of sovereign Ukraine. This includes nearly all of the Luhansk region, along with parts of Donetsk, Kherson, and Zaporizhzhia.

After the day’s talks wrapped, Ukraine’s top negotiator Rustem Umerov wrote on X that the meeting had focused on reaching a “dignified and lasting peace,” and thanked the US for mediating.

“Additional meetings are scheduled for tomorrow,” he said.

Zelensky struck a cautious note, saying it was “too early” to draw conclusions from Friday’s talks. “We will see how the talks go tomorrow and what the results will be,” he said afterward in a daily address.

He said the “main thing” in the talks is for Russia to finally be ready to end the war, adding: “Ukraine’s position is clear. I have defined the framework for dialogue for our delegation.”