KIEV, Sept. 14 ??“ President Viktor Yushchenko??™s party, Our Ukraine, on Thursday sharply criticized Prime Minister Viktor Yanukovych for his plans to postpone accession to NATO, a development that may undermine ongoing government coalition talks.

The criticism underscores an increasing split between Our Ukraine and the Regions Party, Yanukovych??™s party, and jeopardizing plans to form a broad coalition to back the government.