Moscow is claiming it has captured the Ukrainian city of Kherson, with the southern port's mayor warning it is now 'completely surrounded' by Russian troops.
Officials in the capital, Kyiv, say opposition forces are moving 'closer and closer' to the region.
Russian paratroopers launched an airborne assault on a military hospital in Kharkiv earlier.
A spokesperson for the Kremlin says Russia is ready to hold another round of negotiations with Ukraine.
But president Volodymyr Zelenskyy says Moscow must stop bombing Ukrainian cities before talks can continue.
