Lithuanian president Dalia Grybauskaite tells CNBC that Russia is "dangerous and unpredictable".
David Cameron, U.K. prime minister, explains that the European Union talks on Ukraine should make it clear that Russia's intervention is unacceptable and will have consequences.
Lilit Gevorgyan, CIS analyst at IHS Global Insight, explains how news that the Crimean Parliament is voting to become part of Russia complicates matters for both the West and Russia.
CNBC's Eamon Javers looks into what American firms are on the Russian payroll.
Discussing if Russian president Vladimir Putin has begun to soften his position on Ukraine, with Michael McFaul, former U.S. Ambassador to Russia; John Herbst former U.S. Ambassador to Ukraine; and Charles Dallara, Partners Group managing director,
CNBC's John Harwood discusses the meeting between Secretary of State John Kerry and Russian Foreign Monster Sergey Lavrov.
With around 3.8 times of price to earnings, investment opportunities in Russian shares may be compelling, says Karine Hirn, Founding Partner, East Capital.
CNBC's Steve Sedgwick speaks to Ukraine's opposition leader and likely presidential candidate, Vitali Klitschko, and asked him what he hopes to do for his country.
The U.S. and EU are readying funds to support Ukraine. CNBC's Michelle Caruso-Cabrera explains how those funds could end up in Russia.
CNBC's John Harwood reacts to Secretary of State John Kerry's comments on the Ukrainian crisis.
Secretary of State John Kerry discusses the parameters of his discussions with Foreign Minister Sergey Lavrov.
Secretary of State John Kerry has agreed to continue discussions to help stabilize and overcome the crisis in Ukraine. Kerry also commented on Lebanon saying the U.S. is deeply concerned about security and sovereignty of the people of Lebanon.
Russia shrugged off Western demands to withdraw forces in Ukraine's Crimea region to their bases amid a day of high-stakes diplomacy in Paris.
The risk of economic sanctions against Russia poses risk to Western companies. The most vulnerable include consumer brands.
CNBC's Michelle Caruso-Cabrera provides insight on the meeting between Secretary of State John Kerry and the foreign ministers of France, Britain, Russia and Ukraine.
CNBC's Eamon Javers reports on how much and where the Russian Federation is spending in the United States.
CNBC's Michelle Caruso-Cabrera reports UK's Finance Minister Osborne has announced the freezing of 18 Ukrainians' assets.
The U.N. deputy secretary-general has denied reports from Ukrainian officials that a U.N. special envoy was kidnapped in Crimea.
Russia said it could not order "self-defense" forces in Ukraine's Crimea region back to their bases ahead of crucial ministerial talks in Paris.
Crashing websites and overwhelming data centres, a new generation of cyber attacks is costing millions and straining the structure of the Internet.