Russia attacked Ukraine with dozens of strike drones and ballistic and cruise missiles, focusing on energy infrastructure, the Ukrainian military and local officials have said.
The overnight strikes hit Kyiv and the region around the capital, the Black Sea port Odesa and central Ukraine, they said
At least one person was injured in the Kyiv region, with damage reported in five districts where more than a dozen houses were damaged, regional Governor Mykola Kalashnyk said on theT elegram messaging app.
Odesa Governor Oleh Kiper wrote on Telegram that a night-time drone attack on the energy infrastructure of the region caused fires that had been extinguished.
Russia attacks the Ukrainian energy system almost daily, striking thermal power plants and electrical substations.
Attacks on power stations, the energy transmission system and the gas sector are important elements of the full-scale invasion of Ukraine launched by Russia on 24 February 2022.
Russia says it is seeking to undermine Ukraine's ability to fight.
A series of blasts were heard Kyiv starting at around 4am local time, shortly after an air raid alert was issued, with the air force later widening the alert warning nationwide citing the threat of missiles.
"The enemy is attacking the capital with ballistic weapons," the head of Kyiv's military administration Tymur Tkachenko said on Telegram, urging people to remain in shelters.
Kyiv Mayor Vitali Klitschko said on Telegram that two wounded people, a woman and a child, were taken to hospitals from the suburbs.
The Ukrainian capital, regularly targeted by Russian missile and drone attacks since the start of the invasion on 24 February 2022, has faced waves of overnight strikes in recent weeks as Moscow has intensified its winter assaults on energy and military infrastructure.
Temperatures had plunged to nearly -10C when the capital was struck, with emergency services deployed across the city.
Mr Tkachenko said the attacks had caused a fire on the roof of a residential building.
The bombardment prompted heightened vigilance across Ukraine, all the way to the western border.
Poland's Operational Command said it was scrambling jets after detecting "long-range aviation of the Russian federation conducting strikes on the territory of Ukraine".
It also came hours after blasts in Lviv, a western city near the Polish border that rarely sees deadly attacks.
Explosions ripped through a central shopping street at around midnight, killing a policewoman and injuring 15 people after officers responded to a reported break-in.
"This is clearly an act of terrorism," mayor Andriy Sadovyi said, offering no details on perpetrators.
Ukraine will mark four years since Russia's assault on Tuesday, a war that has shattered towns, uprooted millions and killed large numbers on both sides.
Moscow occupies close to a fifth of Ukrainian territory and continues to grind forward in places, especially in the eastern Donbas region, despite heavy losses and repeated Ukrainian strikes on logistics.
Ukrainian President Volodymyr Zelensky said on Friday that Ukraine was "definitely not losing" the war and that victory remained the goal.
He said Ukrainian forces had clawed back about 300 sq.km of territory in recent counterattacks, which If confirmed, would be Kyiv's most significant advances since 2023.
Sweeping outages of Starlink internet terminals across the Ukraine front, shut down by owner Elon Musk following a plea from Ukraine, have enabled the push, according to Mr Zelensky.
The United States is pushing both sides to end the war, brokering several rounds of talks since in recent weeks without a clear breakthrough.
Mr Zelensky, under mounting pressure from Washington to consider concessions, said on X yesterday that he planned consultations with European leaders in the coming days and wanted deeper involvement from Middle Eastern states and Turkey.
