Former US president Bill Clinton told an international AIDS conference in Melbourne that countries should not weaken their resolve to bring those responsible for the downing of Malaysia Airlines Flight MH17 to justice.
He said: "Those who shot them down and provided the means to do so represents the other side in our struggle to define the terms of our interdependence".
Thousands of online users have taken to social media to call for the victims of the Malaysian airliner crash to be returned to loved ones.
United States intelligence officials admitted that they do not know who fired the surface-to-air missile that downed flight MH17.
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