French President Francois Hollande, left, shakes hands with Polish Prime Minister Donald Tusk prior to meeting at the Elysee palace in Paris, Thursday, April 24, 2014 (AP Photo/Jacques Brinon)

PARIS (AP) — French President Francois Hollande is warning against military pressure in Ukraine and threatening new European sanctions if tensions don't subside.

Hollande, speaking Thursday with Polish Prime Minister Donald Tusk in Paris, also urged the new Kiev government to enshrine the rights of Russian-speaking minorities in Ukraine's constitution.

He said, "We must condemn everything that goes in the direction of increasing tensions, of military pressure, of anything that could degenerate into a conflict that would be extremely dangerous for all of Europe."

Hollande said that if all sides don't adhere to a peace accord reached last week, "it will be necessary to strengthen sanctions, as EU leaders warned."

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