Ukrainian forces battled Russian invaders on three sides on Thursday after Moscow unleashed the biggest attack on a European state since World War Two, prompting tens of thousands of people to flee their homes.
After Russian President Vladimir Putin declared war in a pre-dawn televised address, explosions and gunfire were heard through the day in Ukraine's capital and elsewhere in the country, with at least 70 people reported killed.
The assault brought a calamitous end to weeks of fruitless diplomatic efforts by Western leaders to avert war over Russian demands for a redrawing of post-Cold War security arrangements in Europe.
"This is a premeditated attack," U.S. President Joe Biden told reporters at the White House as he unveiled harsh new sanctions, coordinated with allies, against Russian banks, oligarchs and state companies.
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