Coverage here has ended but find the latest updates here.
Ukraine’s capital was rocked by explosions and the sound of air-raid sirens early Friday, on the second day of a Russian advance that left residents and leaders bracing for the city to be overrun.
Ukraine said that hundreds of Russian troops were killed and injured as they bore down on Kyiv — with Ukrainian President Volodymyr Zelenskyy calling on Western governments to take stronger action against Russia and anyone with military experience in Europe to help defend the country's independence.
Russia is meeting "greater resistance" from the Ukrainians than they might have expected, a senior U.S. defense official told NBC News on Friday. "They are fighting for their country," the official said, referring to Ukrainian troops and freedom fighters.
Zelenskyy said that at least 137 people had been killed and 316 injured after Russia launched its invasion Thursday, attacking key cities and taking control of the Chernobyl nuclear power plant.
Follow our in-depth coverage of the Russia-Ukraine crisis here.
Pope calls for weapons to be 'silenced,' urges support for those fleeing Ukraine
Ukrainian ambassador to U.S. accuses Russia of war crimes
Russian offensive unexpectedly slowed by stiff Ukrainian resistance
Biden, in call to Zelenskyy, praises 'the brave actions of the Ukrainian people'
White House will directly sanction Putin
Ukrainian defense minister urges Russian citizens to protest invasion
A growing number of cultural, sports institutions cut ties with Russia
NATO deploys elements of Response Force for first time for collective defense
Biden, Zelenskyy hold phone call as Russian troops attempt to enter Kyiv
Video shows military vehicle run over car in Kyiv; driver survives
Russia will be held "accountable" for its actions, NATO secretary-general says
United Kingdom to sanction Putin, Russian foreign minister
NATO secretary-general warns cyberattacks could trigger Article 5
NATO leaders promise that Russia and Putin "will pay a severe price" for Ukraine invasion
Barren grocery store shelves in Kyiv spark fears
Amnesty International says Russia's 'indiscriminate attacks' may constitute 'war crimes'
Russia to limit Facebook access in response to media 'censorship'
Russia captures Chernobyl site. What if it were hit by a missile?
U.S. concerned Russia will use disinformation to encourage Ukrainian surrender
Russian acts not allowed in this year’s Eurovision Song Contest
Head of European Space Agency says member states 'will take any decisions needed'
Russia has launched an amphibious assault near the city of Mariupol, U.S. defense official says
Kyiv resident sings the national anthem as she clears apartment debris after bomb
Ukraine's capital in 'defense phase,' Kyiv mayor says
Embassies, Boris Johnson turn to Chinese social media to mediate Russia-Ukraine conflict
U.S. public sees Russia-Ukraine conflict as a critical threat, Gallup finds
Hillary Clinton calls on U.S., European allies to move 'more quickly' on sanctions, targeting Putin and Russian oligarchs
Reports of at least 25 civilians killed, more than 100 injured, U.N. human rights office says
Ukrainian official says Russian shrapnel hit orphanage but no casualties
Formula One cancels Russia Grand Prix
Russia is ready for talks with Ukraine, Putin tells Xi
Pope Francis visits Russian embassy in Rome to express personal concerns over conflict
Ukrainians donate blood in large numbers as fighting continues
Sean Penn is in Ukraine making a documentary about Russia’s invasion
Zelenskyy says he missed call with Italy's PM due to deadly fighting: 'Next time I'll try to move the war schedule'
As many as 4 million people could flee Ukraine 'if the situation escalates,' UN refugee agency warns
Age restriction removed for joining Ukrainian military
Russia retaliates to sanctions, bans all British flights from its airspace
UEFA moves Champions League soccer final to Paris from St. Petersburg
Pacific island nation severs diplomatic ties with Russia
China says it opposes any 'illegal' sanctions against Russia
Ukraine warns Russian forces are using disguise to enter the country
Gamma radiation dose rates exceed control levels after Russian troops seize Chernobyl, officials say
International Criminal Court says it may investigate possible war crimes after Russian invasion
Taliban calls for peaceful resolution of Ukraine conflict
Ukrainian forces blow up bridges to impede Russian forces, interior ministry says
'We'll prevail,' Ukraine minister says
Ukraine prohibits men ages 18 to 60 from leaving
Sirens activate in Kyiv as city warns to seek shelter
Large explosion rocks Kyiv apartment building
Macron says he called Putin because Zelenskyy couldn't reach him
Top Pentagon official: Russian troops 20 miles from Kyiv
'Enemy sabotage groups' in Kyiv, Zelenskyy says
E.U. leaders vow 'massive and targeted' sanctions on Russia
IOC condemns Russia for violation of Olympic Truce
Lawmakers received unclassified briefing with White House officials on invasion
U.N. Security Council to vote Friday on condemning invasion
White House is aware of Zelenskyy's location
Russia sanctions are a ‘big deal,’ experts say. But effects could take years.
Sanctions are focused on preventing 'worst-case scenario,' Price says
White House says Biden administration is prepared to welcome Ukrainian refugees