In Kyiv, some take shelter in metro stations while many pack up and flee west; yet others vow to stay and fight

European foreign policy chief Josep Borrell says Russia is in 'violation of the basic principles of human coexistence; Brussels will seek to block Russian access to markets

'Russia has chosen the path of aggression against a sovereign and independent country,' Jens Stoltenberg says; Putin has sought to block Ukraine from joining Western security bloc

Cybersecurity researchers say attackers infected hundreds of computers with destructive malware; move was expected as accompaniment to Russian military incursion

Russian leader says miliutary operation meant to 'protect people who have been subjected to bullying and genocide'

In video message to citizens, President Zelensky says Russia attacking military infrastructure, warns developments will influence future for all of Europe

As Putin begins invasion with assault on Ukrainian cities, he warns world to not interfere; US, NATO vow response, expected to come in form of sanctions

US president says he will announce new 'consequences' for Putin Thursday afternoon after huddling with other G7 members

Ukrainian draft proposal declaring Russia in violation of UN Charter and international law doomed to fail thanks to Kremlin's veto

Zelensky makes emotional appeal for peace in Russian as Pentagon says soldiers 'are ready to go right now'; pictures show major tank and troop buildup near Kharkiv