Russian forces advance as fighting intensifies in Ukraine

The United Nations overwhelmingly voted to denounce the Russian invasion of Ukraine Wednesday as the week-long war grinds on in the north, east, and south of Ukraine. The UN also reported that more than 800,000 Ukrainians have fled for surrounding nations. Meanwhile, Russia said 500 of its troops have been killed, though the numbers are thought to be higher. Nick Schifrin reports from Lviv.