French President Francois Hollande has reportedly termed a peace plan drawn up by France and Germany as "one of the last chances" to end the conflict in east Ukraine.
German Chancellor Angela Merkel said that it was unclear if the plan would succeed but added that it was "definitely worth trying," reported the BBC.
Hollande said that the plan included a demilitarised zone of 50-70km around the current front line.
The two leaders are due to discuss the plan with Russian President Vladimir Putin and Ukrainian leader Petro Poroshenko via telephone on Sunday.
Although few details are known about the peace plan yet it is believed to be an attempt to revive a failed truce signed in Minsk, Belarus, in September last year.
Hollande said that the conflict-torn regions of Ukraine would need "extensive autonomy" and that it would be difficult to "make them share a common life."
The west has accused Moscow of backing the pro-Russia separatists in eastern Ukraine, a claim that Russia has denied so far.
