Kiev: Ukraine`s lawmakers will meet in a special session on Thursday to decide whether to accept or reject the sudden resignation of the prime minister, the presidency said.
The special parliamentary session would also discuss a Dutch-led investigation into last week`s downing of Malaysian flight MH17 in rebel-held east Ukraine, the presidency said.
Prime Minister Arseniy Yatsenyuk quit in fury over the collapse of his ruling coalition on Thursday, plunging the country into political uncertainty as Kiev battles a deadly insurgency in the east.
His resignation has not been ratified by parliament, and President Petro Poroshenko said in a statement issued late Friday that he "counts on further cooperation with Arseniy Yatsenyuk and the entire Cabinet of Ministers".
In a sign that the political upheaval in the cash-strapped country is ringing alarm bells, both IMF chief Christine Lagarde and US Vice President Joe Biden spoke on the phone with Poroshenko on Friday.
In talks with Lagarde, Poroshenko said he "assured that Ukraine was ready to fulfill all its obligations" agreed under a $17.0 billion (12.7 billion euro) bailout accorded by the IMF in late April.
The president said Biden meanwhile emphasised Washington`s readiness to help Ukraine undertake much needed reforms.