Russian President Vladimir Putin said on Saturday he supported the decision of the President of Ukraine Petro Poroshenko to cease fire in the southeast of Ukraine, but added that without "practical action" to start negotiations the plan would not work, NBC News reported. Poroshenko announced the week-long ceasefire on Friday night, urging the rebels to lay down their arms and warning that Ukrainian forces would respond if attacked. On Saturday, pro-Russian separatists attacked Ukrainian posts on the border with Russia and a military base and tried to storm an airforce base overnight into Saturday, government forces said.
