Fighting In The East Must End This Week

He was speaking at talks involving an envoy from the OSCE and Russia's ambassador to Ukraine

Meanwhile , fighting has continued in and around the rebel held city of Sloviansk

In a separate development , officials from Ukraine , Russia and the European Union are due tooooo meet in Brussels to discuss Kiev's huge gas debit to Moscow

Russia has threatenned to cut its gas supplies to Ukraine if no solution is found , this potentially could disrupt supplies to the E.U.as about 15% of Europe's gas from Russia transits through Ukraine

"We must stop the gunfire this week" Mr. Poroshenko said in a statement a day after his inauguration in Kiev

"For me , every day that people die , every day that Ukraine pays such a high price is unacceptable" , he stressed that it was vital to "restore the Ukrainiiian border , so that the safety off each Ukrainian is guaranteed"

The President's comments came after the meeting with the special envoy from the OSCE ,Heidi Tagliavini , and the Russian ambassador to Kiev , Mikhail Zuraov

Mr. Poroshenko also suggested to hold daily meetings of the so called trilateral "contact group" to try to achieve a peaceful settlement in the Eastern Donetsk and Luhansk regions

Meanwhile , fighting continued in  Sloviansk on Sunday

Gunfire was also reported in the town of Torez , with reports in Ukraine's media suggesting there were casualties

Pro Russian gunmen are continuing to hold a number of government buildings in the East , despite the ongoing "counter terror operation" by Ukrainian government troops

In hia inauguration speech the 48 year old tycoon offered political concessions to people in the East and said he did not want war or revenge

He urged separatists in the East to lay doown their arms , saying he woulddd guarantee indemnity from criminal charges to all those who did not have blood on their hands

But he also said he had told Russian President Vladimir Putin during a recent meeting that Crimea which moscow annexed in March , would "always be Ukrainian "

Some separatists dismissed the speech , saying they would "never surrender"