Obama went ahead with a trip to tout infrastructure investment in Delaware and to raise money for Democrats in New York despite the incident in which more than 290 people were killed. A Ukrainian official said there were 23 Americans aboard but U.S. officials did not confirm that.

Before leaving the White House, Obama spoke by telephone to Russian President Vladimir Putin after the United States on Wednesday imposed the most wide-ranging sanctions yet on Moscow for its actions in Ukraine. During the call, which came at Russia's request, Putin informed Obama about the downed plane.

“I can confirm that President Putin near the end of this morning's phone call with President Obama noted the early reports of a downed passenger jet near the Russia-Ukraine border," White House spokesman Josh Earnest said.
Ukraine and Russia traded accusations of blame over the incident. Obama made brief remarks about the plane at the beginning of a speech about roads and bridges in Wilmington, Delaware.

US Vice-President Joe Biden said it appeared that the downing of the jetliner near the Ukraine-Russia border was not an accident and that the passenger jet apparently was ‘blown out of the sky’.
"This is truly a grave situation," he said during a speech in Detroit.
Both Obama and Biden spoke by phone with Ukrainian President Petro Poroshenko, offering assistance to help determine what happened to the Boeing 777 that was flying from Amsterdam to Kuala Lumpur, officials said.
Obama and his Ukrainian counterpart emphasized that evidence from the crash must remain in Ukraine so international investigators have a chance to look at all of it, officials said.

Obama also called Malaysian Prime Minister Najib Razak and Dutch Prime Minister Mark Rutte to express condolences and offer U.S. support for a full probe. The White House said Obama told Rutte that the United States "was prepared to contribute immediate assistance to support a prompt, full, credible and unimpeded international investigation."

Malaysian Prime Minister Najib Razak said his government was dispatching a special flight to Kiev carrying a special Malaysia disaster assistance and rescue team, as well as a medical team.

"The Ukrainian authorities believe that the plane was shot down. At this stage, however, Malaysia is unable to verify the cause of this tragedy. But we must, and we will, find out precisely what happened to this flight. No stone will be left unturned," Najib said.
The Federal Aviation Authority (FAA) of US said it had advised American airlines to avoid the conflict prone area.

"The FAA was in contact with US carriers following the crash of Malaysian Air Flight 17. The agency confirms that carriers have voluntarily agreed not to operate in the airspace near the Russian-Ukraine border," it said.

Unpredictable Element
The crash injected an unpredictable element into the increasingly violent confrontation between Ukraine and Russian-backed separatists in eastern Ukraine.

Republican lawmakers, who have called for tough U.S. action against Moscow over Ukraine, called for retaliation against Russia if it were found to have been involved in the crash.
"I believe there should be serious consequences if we find out that it was either Russian agents, Russian equipment or Russians directly that was responsible for the downing of this airliner," New Hampshire Republican Senator Kelly Ayotte said in a speech in the U.S. Senate.

Obama, determined not to appear to be a hostage of world events, continued with his trip after telling Putin that the United States could impose more sanctions on Russia if Moscow does not take steps to de-escalate the Ukraine crisis.

The new round of U.S. sanctions against Russia included penalties against Russia's largest oil producer, Rosneft, and other energy, financial and defense firms.

In Wilmington, Obama ate a hamburger with a supporter at a dinner after shaking hands and hugging children in the restaurant. In New York, he attended Democratic fundraisers that were not open to the press.
Seeking to show that Obama was on top of the crisis despite his travel, the White House said he convened separate calls with Secretary of State John Kerry and senior members of his national security team, including CIA Director John Brennan, after Air Force One arrived in New York.


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