World
Ukraine faces 'toughest winter' since Russia's full-scale invasion, UN official tells BBC
A senior UN official tells the BBC there is a race against the clock to ensure access to power and water through winter.
BBC World•
Efforts are under way to repair Ukraine's power network so people can run heaters and access water during winter
Ukraine is facing its "toughest winter" since Russia's full-scale invasion in 2022, a top United Nations official told the BBC.
Alexander De Croo, head of the UN development agency, said there was a risk of "humanitarian catastrophe" if Russian attacks cut off access to power and water.
A full-scale war has been raging between Russia and Ukraine since Putin launched an invasion more than four and a half years ago.