Pro-Russian rebels have shot down two Ukrainian fighter jets, a spokesman for Ukraine's military operations says.
The spokesman said the two were downed near Savur Mogila in eastern Ukraine. No details were known about the pilots.
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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