Parties in Slovak Prime Minister Iveta Radicova's outgoing government will hold talks with the opposition on Wednesday to reach a quick agreement on ratifying a plan to strengthen the euro zone's EFSF rescue fund, a party spokesman said.

Lawmakers rejected a plan to bolster the European Financial Stability Facility (EFSF) in a vote on Tuesday, toppling the center-right cabinet, but a second vote with opposition support is likely to approve the pact within days.

Slovakia is the only euro zone member yet to ratify the plan that would give the EFSF bigger powers to fight the spreading debt crisis. Ratification by all 17 members is needed for the plan to take effect.

Robert Fico, head of the leftist opposition party Smer, said on Tuesday he was ready for talks. His party supports the EFSF in principle but refused to support it on Tuesday because by abstaining it helped topple the government.

We want to vote on the EFSF as soon as possible, ideally on Thursday. Everything depends on whether an agreement with Smer is reached, said Michal Lukac, spokesman for Radicova's Slovak Democratic and Christian Union (SDKU).

Radicova has asked SDKU leader Mikulas Dzurinda to lead the talks, which will also include two junior ruling partners.

The coalition's forth member, Freedom and Solidarity (SaS) will not take part. Its opposition to EFSF ratification brought down the government in Tuesday's vote.

It refused to vote in favor because its leader, free-market ideologue Richard Sulik, argued that as the euro zone's second poorest members, Slovaks should not have to bail out higher-spending, richer countries like Greece.

The cabinet, which remains in office until a new administration is formed, will meet at 3 p.m. (1300 GMT) and a cabinet source told Reuters it would formally approve EFSF ratification again and resubmit it to parliament.

Parliament is next due to sit on Thursday afternoon, which would be its first opportunity to hold a new vote on the EFSF.

Its rejection of the plan on Tuesday rattled global markets frustrated at the euro zone's lack of flexibility in decision making at a time when Europe's debt crisis is worsening.

President Ivan Gasparovic, responsible for appointing the next prime minister, cut short a visit to Asia to deal with the government collapse and was expected to return on Thursday.