Millions in Europe, Africa, Asia rely on fertile farmlands in Black Sea region; price of wheat surges by 55%; violence could create food insecurity, push more people into poverty

US companies say Russian-issued cards to stop working outside Russia; Biden welcomes decision as major corporations across a range of industries halt all business in country

Russian leader likens West's sanctions to 'declaring war,' as troops continue to shell encircled cities amid scenes of chaos and bloodshed

Local media claimed Denis Kireev was killed during an attempt to arrest him; but defense ministry says he died a 'hero'

Capture of coastal city would be blow to Ukraine maritime access, connect Russian troops coming from Crimea, Donbas; Zelensky to make appeal to US Senate; media exodus from Russia

The war-torn nation's leader also rails at NATO for ruling out a no-fly zone over his country as it continues to fight against invading Russian forces

Founder of heavily used COVID tracking site, student Avi Schiffmann enables those fleeing the war to locate appropriate nearby sanctuary by clicking a link on a smartphone

Kremlin says 'now is not the time' for Russian leader to meet Zelensky; Ukrainian FM accuses Moscow's forces of rape, urges West to 'act now before it’s too late'

Lining up with Europe, Biden announces new efforts to isolate dozens of Russia's richest businesspeople, with hopes they will pressure Putin to back off Ukraine invasion

Officials say radiation levels normal, but plant spokesman warns accident can happen at any moment, with firefighters unable to reach flames