US, EU, UK announce sanctions after attack

Russia launched an invasion against neighboring Ukraine on Thursday using land, air and naval forces.

In the capital of Kyiv, air raid sirens have sounded and a stay-at-home order has been issued.

The U.S. and U.K. responded by announcing another round of sanctions, which aim to limit Moscow’s access to the global economy.

U.S. stocks mounted a stunning reversal on Thursday, closing higher despite the outbreak of violence.

Here are links to additional CNBC coverage of the Russian invasion of Ukraine: