Russia launched a deadly wave of missiles and drones across Ukraine, while an unidentified object believed to be a missile entered Polish airspace before disappearing from radar.
Volodymyr Zelenskyy says Ukraine is facing a "critical shortage" of air defence missiles from its partners, warning that delayed or slow deliveries were leaving the country more vulnerable to Russian attacks and contributing to civilian deaths and destruction.
At least eight people have been killed and more than a dozen wounded across Ukraine after a night of Russian strikes on the country.
Four adults and two girls aged five and 12 were killed by a ballistic missile that detonated in a house near the central city of Kryvyi. Eight other people were wounded in the attack, Kryvyi Rig's defence council reported, warning the death toll may rise.
"This Russian terror once again proves that protection against the Russian missile threat is the most important task when it comes to saving the lives of our people," Zelenskyy wrote on X.
"Untimely assistance and delays in the delivery of anti-ballistic missiles lead to this kind of destruction, these kinds of casualties that, unfortunately, we are seeing today."
In Ukraine's eastern Poltava region one person was killed in a drone strike on a warehouse, while at least 15 people were wounded in attacks on the western city of Lviv.
Kyiv Mayor Vitali Klitschko said Russia was "attacking the capital with ballistic weapons" as the city military administration confirmed one person was killed and two others wounded.
"The threat of further attack remains present. Stay in shelters!" Klitschko said early on Thursday, adding there were fires in several districts of the city.
Five other people were reported wounded in attacks in an eastern Kyiv district.
Photos shared by the Kyiv's emergency service on Thursday showed firefighters sifting through rubble from buildings impacted by the strikes.
Meanwhile, reports in Poland claim an unidentified object was detected in Polish airspace at about 3:40am CET and helicopter crews discovered a crater near the village of Tarnawa-Kolonia after the missile dropped off radar.
Ukraine's acting foreign minister Andrii Sybiha accused Moscow of "violating NATO airspace", posting on X ", Overnight, a Russian Kh-101 cruise missile crossed into Poland as part of Russia's massive strike against Ukraine".
There has been no official response from Moscow.