Russia-Ukraine updates: US to ban Russian carriers from its airspace
Biden will announce the news in his State of the Union address, a source said.
Russian forces are continuing their attempted push through Ukraine from multiple directions, while Ukrainians, led by President Volodymr Zelenskyy, are putting up "stiff resistance," according to U.S. officials.
The attack began Feb. 24 as Russian President Vladimir Putin announced a "special military operation."
Russians moving from Belarus towards Ukraine's capital, Kyiv, don't appear to have advanced closer towards the city since coming within about 20 miles, although smaller advanced groups have been fighting gun battles with Ukrainian forces inside the capital since at least Friday.
Russia has been met by sanctions from the U.S., Canada and countries throughout Europe, targeting Russia's economy and Putin himself.
Latest headlines:
6 killed in attack on Kharkiv civilian building
A rocket attack on an administrative building in Kharkiv in northeast Ukraine has killed at least six people and injured another seven, Ukrainian officials said.
An Indian student was among those killed, according to the Indian government.
A senior administration official told ABC News the U.S. has learned that Russia continues to plan for a “devastating” attack on Ukraine, warning that "the Russians … will crush Ukraine."
-ABC News' Martha Raddatz
YouTube blocks RT, Sputnik in Europe
Google on Tuesday said it had blocked RT and Sputnik, Russian state-linked channels, from YouTube in Europe.
“Our teams continue to monitor the situation around the clock to take swift action,” the company said.
-ABC News’ Zunaira Zaki
Zelenskyy calls Russian attack 'undisguised terror'
Ukrainian President Volodymyr Zelenskyy on Tuesday said the Russian attack on Kharkiv’s main square was an act of “undisguised terror.”
"After that, Russia is a terrorist state. No one will forgive. Nobody will forget," he said on Facebook.
-ABC News’ Clark Bentson
About 660,000 refugees have fled Ukraine: UN
At least 660,000 people have fled Ukraine into neighboring countries in the six days since the Russian invasion began, the U.N. Refugees Agency said.
At the Polish border, UNHCR staff reported queues that were miles long.
“Those who crossed the border said that they had been waiting up to 60 hours,” the agency said on Tuesday. “Most arrivals are women and children from all parts of Ukraine. Temperatures are freezing and many have reported spending days on the road waiting to cross.”
Agency staff said people were waiting up to 20 hours to enter Romania. In Hungary, arrivals were “steady and waiting times vary.” The 37-mile trip between Odessa, Ukraine, and the border with Moldova was taking some refugees 24 hours, the agency said. And arrivals in Slovakia, where asylum laws were rapidly changed, were lower than elsewhere, agency staff said.
An unknown number of Ukrainian citizens have also been displaced within the country, Filippo Grandi, the agency’s commissioner, told the U.N. Security Council on Tuesday.
“The situation is moving so quickly, and the levels of risk are so high by now, that it is impossible for humanitarians to distribute systematically the aid, the help that Ukrainians desperately need,” he said.
The International Organisation for Migration said more than 470,000 people of various nationalities, “including a large number of overseas students and labour migrants,” are still in Ukraine.
-ABC News’ Zoe Magee