At an emergency UN Security Council session on Sunday it was a war of words between Ukrainian and Russian officials.
They blamed each other for the increasing crisis in eastern Ukraine.
"We are trying to avoid any clashes. We do not want blood on our territory. // The conflict is inspired from outside. That's why we we addressed Russian Federation eighth or tenth time --- don't interfere."
The meeting, called by Russia, came about after Ukraine's president said he would launch an "anti-terrorist operation" against pro-Russian forces in his country.
Ukraine has vowed military action against the pro-Russian activists if they don't leave the government buildings they are occupying by Monday morning.
Russia wants the U.S. to stop Kiev from carrying out the operation.
"Let us focus our attention on what we can actually do in this case. And I'm looking here at my Western colleagues."
But the U.S. is asking Russia to withdraw its troops from the Ukrainian border.
"It is hard to reconcile the behavior of the Russian Federation, the propaganda of the Russian Federation, the military actions of the Russian Federation which range from the massing of 40,000 troops on the border to the subversive activities inside Ukraine."
Despite the latest threats out of Ukraine, pro-Russia activists remain inside the seized government buildings in eastern Ukraine.
Britain's UN ambassador says there are up to 40-thousand equipped Russian troops amassed on the Russian border with Ukraine.
Connie Lee, Arirang News.