Two large European countries this afternoon:
Ukrainian Prime Minister Arseniy Yatsenyuk says "we are on the brink of disaster" and he urged Russian President Vladimir Putin to pull back his military from the country.
Speaking to foreign reporters in Kyiv, he said: "This is the red alert. This is not a threat -- this is an actual declaration of war to my country. We urge [Russian] President [Vladimir] Putin to pull back his military and to stick to its international obligations as well as bilateral and multilateral agreements that have been signed between Ukraine and Russia."
Most major television channels showed live broadcasts from traditional city carnivals: