Ukrainian officials say at least 51 people have been killed after a Russian missile hit a supermarket in the Kupiansk district of Kharkiv region.
There has been no immediate comment by Russia, which has denied hitting civilian targets.
Leader of the breakaway Georgian region of Abkhazia has indicated that Russia is planning to build a naval base on the Black Sea coast.
European leaders expected to assure Ukrainian President Volodymyr Zelenskyy of long-term support against Russia as they meet in Granada, Spain.
US President Joe Biden admits he was worried that political turmoil in the US could threaten American aid to Ukraine, urging Republicans to stop their infighting and back “critically important” assistance for Kyiv.
