President Volodymyr Zelenskyy says Ukrainian forces have now gained control of 74 settlements in Russia's Kursk region.
The governor of Russia’s border area of Belgorod, Vyacheslav Gladkov, has declared a region-wide state of emergency - and is appealing to President Putin to declare a federal emergency.
New Voice of Ukraine editor Euan MacDonald says it's unlikely Russia expected this latest border attack.
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