BBC News on August 28, 2014, reported that Mr Poroshenko has called for a meeting of the UN Security Council because Russian troops are deployed in Ukraine. Excerpts below:
Ukrainian President Petro Poroshenko has cancelled a visit to Turkey, citing “Russian troop deployments” in the east of the country.
Mr Poroshenko said his place was in Kiev in view of a sharp deterioration in the situation in Donetsk region.
His announcement came as pro-Russian rebels captured the seaside town of Novoazovsk and threatened to take the strategic port city of Mariupol.
The rebel successes constitute the opening of a new front in the conflict.
Mr Poroshenko said he was calling a meeting of the Ukrainian security council.
Ukrainian officials have repeatedly said that Russia has been sending troops and equipment to the rebels, but Russia has denied arming or covertly supporting them.