Ukraine: Troops fight back Russians one street at a time in ‘completely ruined’ key city

• ‘The number of victims is rising every hour’ in Sievierodonetsk, ‘but we are unable to count the dead and the wounded amid the street fighting,’ mayor said
• The battle is a race against time for the Kremlin, which wants to capture the Donbas region before more Western arms arrive to bolster Ukraine’s defences