Kyiv mayor: 'No Russian troops in the capital'

This has been CNBC's live blog tracking Friday's developments in Russia's attack on Ukraine. Follow the latest updates here.

Street fighting took place in Ukraine's capital of Kyiv, the Associated Press reported, as Russian forces closed in on the city.

Ukraine blew up bridges leading into Kyiv in an effort to prevent Russian troops from infiltrating the capital.

The United States and its European allies, meanwhile, have decided to sanction Russian President Vladimir Putin directly.

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