Ukraine has accused Russia of bringing three tanks into the east of the country to fight the Ukrainian army.
Interior Minister Arseny Avakov suggested separatist rebels had brought three tanks and other military vehicles across the border.
While he did not directly accuse Russia of sending the tanks, he made clear he held President Vladimir Putin responsible for failing to carry out a promise to tighten controls at the border.
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The French president has delivered posthumous awards in a national ceremony in Paris as the slain officer's partner appealed for peace.
One mother said she had travelled for hours to celebrate her daughter's 16th birthday, only to miss the gig completely.
The family of a former Royal Navy officer who was killed as thieves stole his car pay tribute to the 'wonderful husband, son, and brother'.