Poland scrambled fighter jets near its border with Ukraine after Russian missiles and drones struck Ukraine’s capital Kyiv overnight, killing at least one person and injuring dozens, Ukrainian authorities said.

Poland’s military said the move was a preventive step to protect its airspace as fighting intensified close to its border with Ukraine. Later, the armed forces said there was no violation of Polish airspace.

Ukraine’s State Emergency Service reported that at least 28 people were injured in Kyiv as multiple buildings were damaged. President Volodymyr Zelensky said Russia launched nearly 500 drones and about 40 missiles, targeting civilian areas and energy infrastructure.

Kyiv Mayor Vitali Klitschko said thousands of buildings lost power and heating as temperatures dropped below freezing. Emergency officials said 68 residents were evacuated from a retirement home in the city’s eastern Darnytskyi district.

Zelensky accused Moscow of trying to prolong the war, saying Russia was using the attacks to inflict further suffering on Ukraine. He urged the United States, Europe and other allies to take strong action against Russian aggression.

The strikes came ahead of planned peace-related discussions, with Zelensky expected to meet U.S. President Donald Trump in Florida on Sunday. Zelensky, EU leaders and European Commission President Ursula von der Leyen were also expected to discuss peace efforts by phone.

Meanwhile, Russia’s defense ministry said its air defenses shot down seven Ukrainian drones overnight. Fighting continues as diplomatic efforts intensify to find a path toward ending the nearly three-year war.

With inputs from BBC