NATO scrambled fighter jets in Polish and Romanian airspace overnight as Russia carried out massive drone and missile strikes in western Ukraine, killing at least 25 people, three of them children.

Russia's defence ministry released video on Thursday showing its soldiers moving freely through the southern part of the Ukrainian city of Pokrovsk, patrolling deserted streets lined with charred apartment blocks.

At least 26 people have been killed including three children in a Russian missile and drone attack that hit two blocks of flats in the western city of Ternopil, Ukrainian officials say.

Ukraine plans to seek nearly $44 billion in climate damages from Russia for emissions caused by the ongoing war.

At least 26 people were killed in a Russian drone and missile attack overnight that hit apartment buildings in the western Ukrainian city of Ternopil, Ukrainian officials said on Wednesday.