US President Barack Obama has said a surface-to-air missile fired from a rebel-held area in east Ukraine brought down Malaysia Airlines flight MH17, the BBC reports.
The plane crashed on Thursday, killing all 298 people on board.
Mr Obama called the attack “an outrage of unspeakable proportions”, saying he would ensure “the truth is out”.
The US and Russia clashed at the UN Security Council, with Russia’s envoy putting the blame on Ukraine for its army’s attacks on eastern areas.
Up to 20 international observers from the Organization for Security and Co-operation in Europe (OSCE) reached the crash scene near the village of Grabovo on Friday.