The two parties that helped lead Ukraine's Orange Revolution continue to wrangle over leadership positions, days after signing an agreement on forming a democratic coalition.
Former Prime Minister Yulia Tymoshenko insisted Tuesday her bloc should have the right to name the prime minister, and that the Socialist Party's Olexander Moroz be named president of parliament.
Meanwhile, senior officials of President Viktor Yushchenko's Our Ukraine Party say they will not accept Ms. Tymoshenko as prime minister. The president had fired her as prime minister last year following infighting in the cabinet.
Last week, representatives of the two parties and the Socialist Party agreed to form a majority coalition in parliament.
The agreement did not specify who will get the post of prime minister. The groups say they expect to sign a final document when the new parliament meets next month.
No party won enough seats in parliament in the March elections to form a government. The pro-Russian opposition Party of Regions -- led by former presidential candidate Viktor Yanukovych -- won 32 percent of the vote, followed by the Tymoshenko bloc with 22 percent. The Our Ukraine Party won about 14 percent.
Some information for this report was provided by AFP and AP.