Russia-Ukraine war: Ukraine hit by one of the worst cyber attacks of the war, says UK – as it happened

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Russia is increasing its efforts to capture Kupiansk in the Kharkiv region, transporting battalion reserves to the area, a spokesperson for the Ukrainian army has said.

Kupiansk was liberated from Russian occupation in September 2022 by the Ukrainian counteroffensive, and has been a target since then, as it serves as an important logistics centre for the Russian invasion's progression to the south and west. It was captured by Russia in February 2022.