Shelling suddenly stopped at midnight local time in the eastern Ukrainian city of Donetsk after President Petro Poroshenko gave the order to government forces to halt firing in line with a ceasefire agreement reached

last Thursday.



Poroshenko, wearing the uniform of the armed forces supreme commander, said in a televised address in the capital Kiev that there was still "alarm" over the situation around Debaltseve, a key transport hub, where government forces are hard pressed by encircling Russian-backed separatists.

He warned that Ukraine, if it were slapped once, would not offer the other cheek.



But seated alongside armed forces Chief of Staff Viktor Muzhenko, he added: "I very much hope that the last chance to begin the long and difficult peaceful process for a political settlement will not be wasted.



said.



Military spokesman Vladyslav Selezynov said the Ukrainian armed forces immediately fulfilled the order and the big guns fell silent in Donetsk and some other parts of the separatist-leaning east. A Ukrainian serviceman loads ammunition into a tank in the territory controlled by Ukraine's government forces, Donetsk region on Friday. Ukraine and Russian-backed rebels fought fiercely across the east of the country on Friday despite a new peace deal brokered by Germany and France. (Alexei Chernyshev/Reuters)



The ceasefire, negotiated in four-power talks in Belarus last Thursday, forsees creation of a neutral "buffer zone" and

withdrawal of heavy weapons responsible for many of the 5,000 deaths in a conflict that has caused the worst crisis in

Russia-West relations since the Cold War a generation ago. "As a first step I now give the order to the armed forces of Ukraine ... to cease fire at 00:00 hours on February 15," hesaid.Military spokesman Vladyslav Selezynov said the Ukrainian armed forces immediately fulfilled the order and the big guns fell silent in Donetsk and some other parts of the separatist-leaning east.The ceasefire, negotiated in four-power talks in Belarus last Thursday, forsees creation of a neutral "buffer zone" andwithdrawal of heavy weapons responsible for many of the 5,000 deaths in a conflict that has caused the worst crisis inRussia-West relations since the Cold War a generation ago.

The deal was sealed by the leaders of Germany and France after 16 hours of all-night talks in Minsk, the capital of Belarus, with the Russian and Ukrainian presidents.



Earlier in the run-up to midnight, heavy artillery and rocket fire roughly every five seconds had reverberated across

Donetsk, the main regional city in the east which is under the control of the pro-Russian secessionists.

In Artemivsk, a town in government-controlled territory north of Debaltseve that has been hit twice in two days by

rocket attacks, there was also silence at midnight.

Poroshenko, Obama, Merkel speak

A member of a Ukrainian pro-government unit near the eastern town of Horlivka who only gave his nickname of Turnir said on television Channel 112: "It's quiet. It's been quiet for half an hour. But we are waiting. We don't believe them. For the past three days they have been banging us hard."



Debaltseve, a strategic rail junction that lies in a pocket between the two main rebel-held regions, has been the focus of some of the fiercest recent fighting.

Russian-backed separatists wait for their transport, preparing to leave towards the frontline, in the village of Vergulivka, Eastern Ukraine. (Maximilian Clarke/Associated Press) Ahead of the midnight deadline, U.S. President Barack Obama spoke to Poroshenko and German Chancellor Angela Merkel, and expressed concern about the violence in Ukraine while pressing for implementation of the ceasefire agreement.

"The president spoke with Ukrainian President Poroshenko today to express his sympathy for the mounting toll of the

conflict in Eastern Ukraine and his deep concern about the ongoing violence, particularly in and around Debaltseve," the White House said in a statement about the call with the Ukrainian leader.



In his call with Merkel, who helped broker the latest ceasefire pact, Obama thanked the German leader for her work.



"They also agreed on the pressing need for all signatories to implement the ceasefire and protocol agreements reached at Minsk last September and reaffirmed by the Minsk Implementation Plan this week," the White House said.

The rebels have advanced far past the line of an earlier ceasefire deal, agreed in September, and the new accord appears to envisage them withdrawing their guns around 75 km, to take them back behind it, while Ukrainian guns would move 25 kilometres back.

Thursday's four-power accord also prescribed constitutional reform to give Eastern Ukraine, where many Russian speakers live, more autonomy. Kyiv has made clear it rejects independence for the "People's Republics" the rebels have declared.

Tatyana Demchenko, deputy commander of the rebel unit in the town of Horlivka, said she had little faith the ceasefire would hold. "They'll shoot at us and we have to remain silent? Militias may receive the order not to open fire, but what — we sit and die in shelling? If they don't shoot, we won't," she said, holding two grenades in her hands.

The Group of Seven industrialized countries issued a statement late on Friday calling on all sides to refrain from actions that would hinder the start of the ceasefire. It said G7 countries were ready to take "appropriate measures" against those who violate the agreement, an apparent threat of more punitive economic sanctions against Russia shortly.

Financial aid package from Canada

Defence Minister Jason Kenney also told the CBC's Evan Solomon earlier this week that while nothing has been decided, Canada is 'open' to helping train Ukrainian troops. (CBC) In a bid to bolster Ukraine's fight against Russian-backed separatists, Canadian Defence Minister Jason Kenney told CBC Radio's The House earlier in the week hat the Canadian government will be sending financial aid as well as radar satellite images.

"I can't give you a precise date but when Prime Minister Harper visited Ukraine… (he) confirmed Canada would provide financial assistance," Kenney said in the interview. "We are hoping to continue to do so."

You can hear more of Kenney's interview on Ukraine, Iraq and the upcoming federal budget on The House,