Russia's biggest air attack of war kills 31 in Ukraine, officials say

Russia unleashed its biggest air attack of the war on Ukraine on Friday, killing 31 civilians, wounding more than 160 others and hitting cities and infrastructure across the country, officials said.

NATO member Poland said a Russian missile appeared to have flown into its airspace for some 40 km before returning to Ukraine under three minutes later.

But the Russian charge d'affaires, summoned to the Polish Foreign Ministry, said Warsaw had provided no evidence of a missile entering its airspace.

The Ukrainian foreign ministry said the assault showed there should be "no talk of a truce" with the Kremlin at a time when uncertainty hangs over the future of Western support for Kyiv.

"Today, millions of Ukrainians awoke to the loud sound of explosions. I wish those sounds of explosions in Ukraine could be heard all around the world," Foreign Minister Dmytro Kuleba said, urging allies to keep sending long-term aid.