Shahed Aviation Industries and 3 senior military personnel all targeted by sanctions; EU says it is 'prepared' to add 4 more entities to blacklist

Statement from president's office says two nations 'share historical affinity that has found expression in moments of crisis and difficulty'

'It is here that freedom fights against the world of tyranny,' Polish premier says in Kyiv; Russian forces said to take 400 hostages at Mariupol’s main hospital as 20,000 flee city

Leaders of 3 NATO countries will meet Ukraine President Zelensky and PM Shmyhal on solidarity trip as 'representatives of the European Council,' as Russia continues to pound city