CNBC's Michelle Caruso-Cabrera discusses the looming Crimean referendum and reports on increasing violence in the eastern part of Ukraine.
Tensions around Ukraine will dominate markets Friday as diplomatic efforts are expected to generate buzz ahead of Sunday's referendum in Crimea.
Stocks tumbled amid concerns events surrounding Ukraine are escalating and China's slowing growth will rub off on the global economy and bite corporate profits.
CNBC's John Harwood discusses the meeting between Secretary of State John Kerry and Russian Foreign Monster Sergey Lavrov.
Gen. Mark Kimmitt, U.S Army (Ret.) and former assistant Secretary of State, and Barry Pavel, Atlantic Council vice president, discusses the sentiment of the U.S on Russia's open option to force in Ukraine.
As political tensions rise, the cooperation between the U.S. and Russia in the energy industry is large and growing, experts at IHS CERAWeek say.
U.S. bonds fell on Tuesday, as investors' "safe-haven" bid waned, due to signs of progress in resolving the political turmoil in Ukraine.
CNBC's Ian Williams reacts to Secretary of State John Kerry and President Obama's comments regarding the conflict in Ukraine. The two offered a "comprehensive rebuttal" of Putin's earlier statement, says Williams.
"(The) Russian government ... has chosen aggression and intimidation as a first resort," Kerry said in a news conference in Ukraine's capital.
Secretary of State John Kerry says the people of Ukraine have the right not to go back to life as it was under former President Viktor Yanukovych and the United States stands with the people of Ukraine. The U.S. has offered $1 billion in a loan guarantee to support Ukraine's recovery.
CNBC's Michelle Caruso-Cabrera discusses what kind of assistance the U.S. is prepared to offer Ukraine.
Despite the ongoing turmoil in Ukraine, Wall Street looked set to rebound on Tuesday, following the worst day for markets in a month.
CNBC's Michelle Caruso-Cabrera discusses how the global markets are reacting to Vladimir Putin's comments on Ukraine. Also, Secretary of State John Kerry arrives in Kiev today.
Ukrainian Prime Minister Arseniy Yatsenyuk believes a political and diplomatic solution can be reached, reports CNBC's Steve Sedgwick.
If Crimea tries to secede from Ukraine with Russian support, there's almost nothing Ukraine could do to stop it.
CNBC's Michelle Caruso-Cabrera reports Secretary of State John Kerry told Russia it's important not to inflame the situation in Ukraine's Crimea region. Ad hoc military has taken control of the country.
Secretary of State John Kerry said the U.S. plans to provide $1 billion in loan guarantees and will consider direct assistance.
The Senate is working on new sanctions in case Iran cheats on its pledge to roll back its nuclear program.
CNBC's Michelle Caruso-Cabrera reports Secretary of State John Kerry addressed whether a nuclear deal was reached with Iran. Kerry said it was Iran that couldn't commit, not France.
CNBC's Michelle Caruso-Cabrera reports John Kerry will testify before Congress Tuesday over the nuclear deal. Former Pennsylvania Governor Ed Rendell (D), and SIFMA CEO Judd Gregg, weigh in.