Some 22,000 people have crossed from Poland into Ukraine since invasion began on Thursday, as Kyiv calls for citizens to take up arms and defend their homeland

After Russian takeover of Chernobyl and Putin's nuclear threats, IAEA director Grossi says damage to nuclear facilities poses 'potentially severe consequences'

Jewish billionaire appears to break with Putin, saying 'war can never be the answer' in letter to employees at private equity firm

European Commission President von der Leyen also declares that news outlets Sputnik and Russia Today will 'will no longer be able to spread their lies' in the EU

Despite the existential threat to Ukraine, its leader has retained his use of pithy one-liners as he remains defiant in the face of Russia's invasion

Mayors of Kharkiv and Kyiv say Moscow's forces largely repelled on fourth day of invasion

Chelsea owner says he is handing over 'stewardship and care' of the club to trustees, but there is no pledge to even directly stay out of decision-making

Israel's Holocaust museum, which has received major donations from Putin-tied oligarchs, refrains from singling out Moscow in its statement, on 4th day after fighting began

Move comes after Ukrainian leader Zelensky initially rejected Belarus as meeting location and proposed Israel as a neutral broker, and as Putin orders nuclear forces on high alert

Russian leader says move a response to 'aggressive statements' by NATO member countries; UK foreign secretary says world must prepare 'for Russia to seek to use even worse weapons'