Kiev - Ukraine's new ruling majority in parliament hit a glitch on Wednesday with one member party declaring a formal coalition agreement on the deal is yet to be signed.

MP Ksenia Liapina speaking for the Our Ukraine People's Union party (OUPU) said parliament leaders had four days to hammer out a common platform and get it approved by party rank and file, or the country's long-running political crisis would continue as before.

Ukraine's legislature on Tuesday approved compromise candidate MP Volodymyr Litvin as parliament's new speaker. Litvin called the decision as "political breakthrough" and declared a new ruling coalition formed, according to him ending two months of political deadlock in the former Soviet republic.

Litvin's announcement was premature, Liapina argued, as party leaders in the legislature had yet to agree on ministerial appointments and bills to put before parliament.

"If the parties (in the new coalition) do not approve the agreement, then there... is no ruling coalition," she said, according to an Interfax news agency report.

The ruling coalition announced by Litvin on Tuesday consists of three parties, the OUPU headed by Ukraine's pro-Europe President Viktor Yuschenko, the larger Block of Yulia Tymoshenko (BYuT) led by Ukraine's populist Prime Minister Yulia Tymoshenko, and the junior Block of Litvin (BL) headed by the new parliament speaker Litvin.

Together, the three parties would command 247 votes in Ukraine's 450-seat house.

The three politicians and their parties differ substantially on a host of issues, topped by Ukrainian relations with Russia, the scale and pace of market reforms, and measures needed to prevent further damage to Ukraine's economy as a result of the world financial crisis.

Other disconnects include Ukraine's position towards NATO membership, government support towards big business, how to fight massive state corruption, and division of powers between the legislative and executive branches.

Yushchenko, Tymoshenko, and Litvin earlier this week agreed the three parties must either develope a common platform and legislative plan by the weekend, or formally declare a new ruling coalition was not formed, Liapina said.

A formal declaration that the legislature's latest attempt to form a new parliamentary ruling coalition had failed would, technically at least, oblige the legislature to fund new elections.

Yushchenko in late October ordered new elections for December, but later backed off of the instruction saying the executive order had been "delayed ... not cancelled."

The Ukrainian legislature's inability to assemble a ruling majority for months, and simultaneous unwillingness to finance new elections called by Yushchenko, has left Ukraine in its fourth constitutional crisis in five years. (dpa)