In brief:
• The Russian army last night called on the remaining Ukrainian troops and ‘foreign mercenaries’ in Mariupol to surrender or die before 1 p.m. Dutch time. That ultimatum has now passed.
• Russian billionaire Roman Abramovich is said to be on his way to Kiev in hopes of reviving peace negotiations between his country and Ukraine.
• Ukrainian President Volodimir Zelensky warns that Russia will not shy away from deploying nuclear bombs in his country.
• Read the most important stories about the Russian invasion here.
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