In a press conference at the White House, President Obama announced that at least one American citizen was killed when Malaysia Airlines Flight 17 was downed near the Ukraine-Russia border on Thursday. He identified the citizen as Quinn Lucas Schansman.
Obama also confirmed reports that the plane had been brought down by a surface-to-air missile, and that the missile appeared to have been fired from an area controlled by Russian-backed separatists.
"This outrageous event underscores it's time for peace and security to be restored in Ukraine," Obama said. He called for an immediate cease-fire, and criticized Russia for failing to take steps to de-escalate the conflict there, saying, "We don't have time for propaganda. We don't have time for games."