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.
The diplomatic pressure on Russia is intensifying tonight as EU leaders meeting in Brussels prepare possible new sanctions.
Prime Minister David Cameron has warned that there will be consequences if it continues to build up a military presence in Ukraine.
ITV News Political Correspondent Carl Dinnen reports
Ukraine's President Petro Poroshenko has said that he believes the crisis in the east of the country is very close to the point of "full-scale war".
He said that EU leaders agreed to prepare new sanctions against Russia, which could be implemented depending on the progress of his peace plan.
He added that he hopes a meeting with Russian amd EU representatives on Monday can bring about a ceasefire.
Downing Street wants to ramp up the sanctions against Russia but that's not going to happen here tonight. The groundwork for new sanctions has not yet been done.
The UK government wants the European Union to look at new ways of targeting individuals close to President Putin and the defence, finance and energy sectors.
These are broadly the areas where sanctions are already in place. But are they working? The Russian economy has been hit, the Rouble is at its lowest point since 1998, shares are falling.
Government sources say the Russians have been more willing to negotiate since the latest round of sanctions. But they also admit that the sanctions have yet to change the situation on the ground and that's why more are needed.
A draft statement from EU leaders meeting in Brussels calls for officials to urgently prepare possible new sanctions against Russia over the crisis in eastern Ukraine.
They will ask the EU's executive Commission and the EU's diplomatic service to work together "to urgently undertake preparatory work" on further sanctions.
David Cameron has warned Vladimir Putin there will be "consequences" if Russian troops are not withdrawn from Ukraine.
Arriving at a summit in Brussels where EU leaders are due to consider beefing up sanctions against Moscow, the Prime Minister said the incursion was "completely unacceptable".
Mr Cameron, who held talks with Ukraine president Petro Poroshenko in Brussels earlier, said: "We have to address the completely unacceptable situation of having Russian troops on Ukraine soil.
"Consequences must follow if that situation continues and we will be discussing that as well today."
Russia is at war with Ukraine and so effectively at war with Europe, Lithuanian President Dalia Grybauskaite has said, calling on Europe to supply Kiev with military equipment.
– President Dalia Grybauskaite
It is the fact that Russia is in a war state against Ukraine. That means it is in a state of war against a country which would like to be closely integrated with the EU. Practically Russia is in a state of war against Europe. That means we need to help Ukraine to ... defend its territory and its people and to help militarily, especially with the military materials to help Ukraine to defend itself because today Ukraine is fighting a war on behalf of all Europe.
Ukrainian President Petro Poroshenko expects to see progress toward peace in the east of the country in the coming days, he said.
"We are waiting that in the very next days, starting from Monday, we can demonstrate the real progress in the peace negotiations," the president said after talks in Brussels.
"Why? Because we are too close to the border where from it would be no return to the peace plan."
The European Union is prepared to toughen sanctions against Russia over the Ukraine crisis, the European Commission President Jose Manuel Barroso said.
The bloc wants to reach a political deal to end the confrontation, he added.
He said: "We are in a very serious, I would say, dramatic situation... where we can reach the point of no return. If the escalation of the conflict continues, this point can come."
"We are ready to take very strong and clear measures but we are keeping our doors open to a political solution," Mr Barroso added.
He described any tightening of sanctions as intended not to escalate the crisis but to push Moscow to negotiate and he stressed that the EU did not want confrontation - "it makes no sense to have ... a new Cold War" - and said that would be "detrimental to all of Europe".
European Union leaders have agreed to prepare "the next level of sanctions" against Russia in response to its intervention in Ukraine, German Vice-Chancellor Sigmar Gabriel said.
– German Vice-Chancellor Sigmar Gabriel
It is clear that after this intervention by Russia in Ukraine ... EU leaders will certainly task the European Commission with preparing the next level of sanctions.
Russian tanks have attacked the town of Novosvitlivka near Luhansk, "destroying virtually every house," Ukraine's military spokesperson Andriy Lysenko said.
Ukraine's military said its forces had pulled out of areas to the east of the border-area city of Luhansk under pressure from Russian-backed rebels.