A message on his Twitter account Thursday confirmed the plan, and details announced Thursday on his presidential website said a telephone conversation with Russian President Vladimir Putin "resulted in an agreement on a ceasefire regime in Donbas (the region encompassing eastern Ukraine and southwest Russia). Mutual understanding was achieved regarding steps that would promote the establishment of peace."
The word "regime" was inserted in an updated version of the announcement, suggesting the ceasefire was the first step in a program of reconciliation. Although Putin has denied the presence of Russian troops in Ukraine, he presented a seven-point plan to Poroshenko to end hostilities in eastern Ukraine.
Putin's plan was dismissed by Ukrainian Prime Minister Arseniy Yatsenyuk as merely a rescue plan for pro-Russian separatists. He also noted numerous prior agreements that he said were broken by Moscow.
Although Ukraine is not a NATO member, Poroshenko is an invited guest at the NATO summit meeting in Newport, Wales, where he met with leaders from the U.S., U.K., France, Germany and Italy prior to the start of the summit Thursday.
Notable deaths of 2014 [PHOTOS]