At least 600,000 people were without power early on Wednesday in Ukraine, after Russia launched an aerial attack that struck energy infrastructure, Zelenskyy said.

Ukraine has severely damaged three of Yandex’s six data centres in the past week, wreaking havoc in a country whose tech ecosystem is centred around one vast, state-aligned company. Launched as a search engine in 1997, Yandex has become Russia’s answer to Google, Uber, Amazon and OpenAI rolled into one.