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:
Ukraine's foreign minister to meet Blinken in Washington
Ukraine's foreign minister, Dmytro Kuleba, is expected to meet with Secretary of State Antony Blinken in Washington on Tuesday, Ukraine's Foreign Ministry said.
Kuleba is scheduled to address the U.N. General Assembly in New York the following day.
-ABC News' Julia Drozd
Russia-backed separatists declare 'general mobilization'
A leader of the Russian-controlled separatists in eastern Ukraine declared a "general mobilization" on Saturday, according to Russian state news agencies.
The head of the separatists' self-proclaimed People’s Republic of Donetsk, Denis Pushilin, made the announcement.
Pushilin's comments come after the separatists yesterday announced mass evacuations and warned of an imminent Ukrainian "offensive" amid fears Russia is moving to stage a pretext to attack Ukraine, cloaking it as aid to the separatists.
-ABC News' Patrick Reevell
40 to 50% of Russian troops in attack position: US official
About 40 to 50% of Russia’s troops are in “attack positions” near the border with Ukraine, a U.S. official told ABC News.
There are about 150,000 troops on the border area, including 125 battalion tactical groups, or BTGs, the official said.
These BTGs number between 750 and 1,000 personnel each and are specifically outfitted as combat forces. The forces include every capability needed to conduct a combat operation, according to the official.
-ABC News' Luis Martinez
'I don't believe it's a bluff,' Defense Secretary Austin says
U.S. Defense Secretary Lloyd Austin told ABC "This Week" co-anchor Martha Raddatz that Russian President Vladimir Putin has a number of options available to him and could attack Ukraine in short order.
"This is not a bluff," he said in the exclusive interview.
"I think he's assembled the right kinds of things that you would need to conduct a successful invasion," Austin added.
Raddatz's full interview with Austin airs Sunday on a special edition of "This Week" from Lviv, Ukraine.
Elon Musk says he's activated Starlink in Ukraine
In response to a plea on Twitter from a Ukrainian official, SpaceX CEO Elon Musk said Saturday that his high-speed internet service Starlink is now active in Ukraine.
"More terminals en route," he tweeted in a reply to Mykhailo Fedorov, Ukraine's vice prime minister and minister of digital transformation.
Earlier Saturday, Fedorov appealed directly to Musk and asked him to provide Ukraine with Starlink stations.
The terminals are small, portable satellite dishes on Earth that connect directly to Starlink satellites in space -- providing high-speed internet to rural and hard-to-reach locations. This is especially important for areas that have already lost access and could potentially help them avoid cyberattacks.
-ABC News' Gio Benitez