Simferopol, Ukraine (CNN) - Tension dramatically mounted in Ukraine's Crimea region Friday as its ambassador to the United Nations warned Russia against any further violation of its territorial borders, a warning that came as the United States urged Russia to pull back from the region or face possible consequences.
"We are now deeply concerned by reports of military movements taken by the Russian Federation inside Ukraine," U.S. President Barack Obama said in televised comments from the White House.
"...It would be a clear violation of Russia's commitment to respect the independence and sovereignty and borders of Ukraine and of international laws."
Obama said any violation of Ukraine's sovereignty and territorial integrity would be "deeply destabilizing, and he warned "the United States will stand with the international community in affirming that there will be costs for any military intervention in Ukraine."
Atlanta (CNN) - Get off the roads, and stay off.
That was the message in Georgia and the Carolinas as a snow and ice storm swept through Wednesday, bringing some of the Southeast's most populous cities to a standstill.
The warnings came as freezing rain brought heavy ice accumulations from Atlanta to Charlotte. Across a large swath of the South, hundreds of thousands of people were without power and thousands of flights were canceled.
Calling ice the biggest enemy, Georgia Gov. Nathan Deal declared a state of emergency. School districts canceled classes and government offices were shuttered in an attempt to avoid a repeat of the traffic paralysis caused by a storm last month.
Up to three-quarters of an inch of ice was expected to accumulate in Atlanta and up to 10 inches of snow and sleet were expected in Raleigh and Charlotte, making travel treacherous.