The Nato Secretary General has accused Russia of continuing to destabilise Ukraine and called on Moscow to "step back from the brink".
Anders Fogh Rasmussen said that rather than helping to stabilise the situation, Moscow's support for Ukrainian separatists continued to grow "in scale and sophistication".
Nato has warned that Russia has put 20,000 troops near the border with Ukraine and could be planning a ground invasion.
Fogh Rasmussen added that Moscow "should not use peace-keeping as an excuse for war-making" and that the shooting down of flight MH17 was a tragic consequence of its "reckless" policy of supporting the pro-Russian separatists.
The mother of the three Australian children killed on flight MH17 told a memorial service her "arms would always be reaching for them."
A woman has apparently posted pictures of herself on social media with mascara looted from the Malaysian Airlines flight MH17 crash site.
A large section of plane wreckage and everyday carry-on items like chocolates remain scattered among the wild flowers at the crash site.