Ken Courtis, chairman of Starfort Holdings, says sanctions on Russia could cause a "credit crisis" in the global economy.
OECD Secretary General, Angel Gurria, says the situation in Ukraine is hitting global economic and political confidence.
Bill Browder, Hermitage Capital Management CEO, discusses implications tensions in Ukraine and Russia have on the market and economy. Browder sees gas supplies to Europe a major concern.
CNBC's John Harwood reports on President Obama and German Chancellor Angela Merkel's plan for a diplomatic solution in Ukraine.
Some American CEOs are now bailing out of attending Russian President Putin's economic forum in Saint Petersburg. CNBC's Eamon Javers reports which are still attending.
Traders worry that Russia could use an emergency U.N. Security Council meeting as cover for an invasion into Eastern Ukraine, veteran trader Art Cashin told CNBC.
Ukrainian troops launched an offensive move Friday morning to retake an eastern town held by pro-Russian separatists. Christopher Chivvis, Rand Corporation, predicts the next course of action.
Pro-Russian rebels shot down two Ukrainian helicopters on Friday, killing two crew, as troops tightened their siege of separatist-held Slaviansk.
Obama warned that the U.S. will "move quickly" to impose further sanctions against Russia if it disrupts the Ukrainian election.
The Ukrainian government has shown remarkable restraint during this whole process, says President Obama in addressing the crisis in Ukraine and Russian President Vladimir Putin's actions there.
President Obama and German Chancellor Angela Merkel discuss the preparations taking place for further sanctions on Russia if needed.
We are united in our determination to impose costs on Russia for its actions, including through coordinated sanctions, says President Obama providing details from his bilateral meeting with German Chancellor Angela Merkel.
Five cents says you can't name April's best-performing commodity.
President Obama and German Chancellor Angela Merkel will be holding a joint press conference at the White House. CNBC's John Harwood reports the situation in Ukraine is getting more grave and worrisome.
CNBC's Bob Pisani and Art Cashin, of UBS, discuss Russia's call for an emergency meeting of the UN Security Council, as investors digest Friday's jobs numbers. Hourly wages aren't going anywhere, says Cashin.
Andrew Wood, former British ambassador to Moscow, says the Ukrainian government has no choice but to try and restore its presence in the east of the country.
The U.S. hasn't sanctioned the Russian natural gas giant, but there's a good reason for that, according to Oilprice.com.
President Obama and German Chancellor Angela Merkel will be holding a joint press conference at the White House. CNBC's John Harwood reports they are expected to display a united front on Russian sanctions.
Ian Bond, director of foreign policy at the Centre for European Reform, comments on Ukraine following the launch of the government's operation to retake control in eastern parts of the country.
Carlo Gallo, founder and director of Enquirisk, says the Ukraine crisis is likely to end through a diplomatic rather than military route.