A government team led by Malaysian Foreign Affairs Minister Anifah Aman will be departing for Ukraine.
European powers seemed to swing behind US belief Russia's separatist allies were to blame. That might speed new trade sanctions on Moscow.
Chinese President Xi Jinping on Friday sent condolences to Malaysia and the Netherlands over the loss of lives in the downed Malaysia Airlines flight MH17.
The Netherlands will not rest until the perpetrators of the possible attack on the crashed plane MH17 are detected, the Dutch prime minister said during a press conference in The Hague.
Chinese President Xi Jinping said he was shocked by the Malaysia Airlines tragedy in Ukraine and expressed grief over the death of the passengers.
At least one US citizen was among the 298 people killed on Flight MH17, Obama said on Friday, adding that "our thoughts and prayers are with his family for this terrible loss."
INTERPOL Secretary General Ronald K. Noble has offered the world police body’s full assistance in the investigation and disaster victim identification efforts following the Malaysia Airlines crash in Ukraine.
President Yudhoyono stressed that an international investigation had to be carried out immediately and Indonesia is ready to take part in the investigation.
Iranian Foreign Ministry spokeswoman Marzieh Afkham offered Iranians' deep sorrow on the crash of the Malaysian passenger plane in east of Ukraine.
The US Federal Aviation Administration said the restricted area includes the entire Simferopol and Dnepropetrovsk flight information regions.
Malaysia Airlines said that all European flights operated by the company would be taking alternative routes avoiding the usual route.
Civil Aviation Administration of China (CAAC) on Friday ordered Chinese aircraft flying over Ukraine to avoid eastern Ukraine airspace following the crash of a Malaysia Airlines plane in that region.