It will probably be some time before we know what exactly happened, says Bob Francis, former NTSB vice chairman.
According to a report, Russian President Putin told President Obama about the crash of the Malaysian jet in a pre-planned phone call, reports CNBC's Michelle Caruso-Cabrera.
CNBC's Phil LeBeau reports there is no indication right now what might have happened to cause the crash of Malaysia Airline MH17.
CNBC's Michelle Caruso-Cabrera reports there is official confirmation from Malaysia Airlines.
At that altitude the airlines clearly thought they were free of danger, reports CNBC's Phil LeBeau.
CNBC's Bob Pisani and Art Cashin, UBS, look at how the markets are reacting to unconfirmed reports that Malaysian jet MH-17 was shot down.
A Malaysian passenger airline has crashed in the Ukraine near the Russian border. CNBC's Phil LeBeau reports Malaysian Airlines has confirmed losing contact with flight MH-17.
A Malaysian passenger airline has crashed in the Ukraine near the Russian border, reports CNBC's Michelle Caruso-Cabrera.
Frank Schauff, CEO of the Association of European Businesses, argues that the latest U.S. sanctions against Russia will impact European businesses.
Tatiana Orlova, senior economist for Russia, CIS and Israel at RBS, says the latest round of Russia sanctions were a blow to markets sentiment.
Republican Sen. Bob Corker applauds President Obama's newly imposed sanctions on Russia for its role in destabilizing Ukraine.
Sen. Bob Corker of Tennessee, the ranking Republican on the Foreign Relations Committee, tells CNBC he has to give President Barack Obama credit where credit is due.
Carsten Nickel, senior vice president at Teneo Intelligence, discusses Germany's stance on the new Russian sanctions and says the country is keen to keep "talking channels" open.
Bill Blain, strategist at Mint Partners, says the latest U.S./EU sanctions on Russia are unlikely to have any effect, especially as the new BRICS' development bank should "change the dynamic".
Christopher Granville, managing director at Trusted Sources, and Chris Weafer, senior partner at Macro-Advisory, agree that Angela Merkel's role in the negotiations with Russia will be "critical".
Daragh McDowell, senior analyst at Maplecroft, says that the European Union's sanctions on Russia are not a major blow to the country's economy, but it shows the bloc's intent.
European Union leaders imposed further sanctions on Russia, ramping up the pressure on President Vladimir Putin. Europe's leaders talk to CNBC about the move - with some calling for more action.
Russian President Putin warned that U.S. sanctions will take relations with Russia to a "dead end" and damage U.S. business interests.
Former British ambassador to Russia, Tony Brenton, says the sanctions agreed by EU leaders are "accentuating antagonism" between Russia and the West.
President Obama addresses situations in Afghanistan, Iran and diplomatic efforts to end violence between Israel and Hamas. President Obama also announces expanded sanctions against Russian businesses and individuals.