Ukrainian Prime Minister Arseniy Yatseniuk has asked Ukraine's partners to freeze Russian assets and finances until the withdrawal of Russian troops from Ukrainian territory.

"The sanctions imposed have produced no result. Under such circumstances, the only element of curbing Russian aggression should be the consideration of the imposition of sanctions to freeze all Russian assets and stop all banking transactions by Russia in the EU member states, the United States, and the G8 countries," he said at a ceremony to sign a memorandum of cooperation between the Cabinet of Ministers of Ukraine and the Ukrainian World Congress in Kyiv on Thursday.

"Russian assets and finances must be frozen until the withdrawal by Russia of its armed forces and equipment from Ukrainian territory," Yatseniuk said.