Amidst brewing revolt with in the Syriza party and street protests over the agreement, Greece's parliament on Wednesday prepared to vote on tough reforms demanded by eurozone creditors in exchange for a new bailout. The vote was to take place late on Wednesday, but the future of the bailout was already in doubt after the International Monetary Fund issued a stark warning that Greece's creditors will have to go "far beyond" existing estimates for debt relief to stabilise the country's finances.
The deal has split the ruling radical Syriza party as it includes changes to labour laws, pensions, VAT and other taxes that were rejected by voters in a July 5 referendum.
Struggling to hold his outraged party together, Prime Minister Alexis Tsipras appealed to his lawmakers to "preserve unity" in the upcoming vote, the state news agency ANA said.
In a closed-door meeting of Syriza lawmakers, Tsipras said the government "had an obligation to avoid a serious worsening of the humanitarian crisis and economic disaster," ANA said.
Tsipras's government suffered its first resignations on Tuesday, with a junior finance minister and a senior economy ministry official walking out in protest.
"I'm not going to vote for this amendment and this means I cannot stay in the government," said junior finance minister Nadia Valavani.
The parliament in Athens must approve the deal before the 18 other eurozone leaders start negotiations over what Greece is to get in return: a three-year bailout worth up to 86 billion euros ($95 billion), its third rescue programme in five years.
French MPs overwhelmingly backed the agreement on Wednesday, with Prime Minister Manuel Valls saying it was the only way out of the crisis.
EU powerhouse Germany's Bundestag is set to vote for or against the plan on Friday.
Under the deal, eurozone governments will contribute between 40 and 50 billion euros, the IMF will contribute another chunk and the rest will come from selling off state assets and from financial markets, a European official said.
Tsipras has admitted he "cannot say with certainty" that it will be enough to prevent a so-called "Grexit" until the final bailout agreement is signed.
An IMF official said the fund would only participate in a third bailout if EU creditors produce a clear plan. The current deal "is by no means a comprehensive, detailed agreement," the official said.
Political analysts questioned why the strongly-worded report appeared not to have been taken into account in the agreement.
Tsipras has been forced to turn to pro-European opposition parties to get the reform measures through parliament after a rebellion by some 30 rebel lawmakers in his own party.
The embattled premier said he took "full responsibility" for signing an accord he did "not believe in." He said he agreed to it "to avoid disaster" as the country teetered on the brink of economic collapse.
"A prime minister must fight, speak the truth, take decisions and not run away," Tsipras said in an interview on Greek public television on Tuesday, when asked whether he would resign if the reforms fail to pass or he loses his parliamentary majority.
Syriza's hardline leftists, lead by Energy Minister Panagiotis Lafazanis, were reported by Greek media as braced to vote against the measures while calling for a return to the drachma.
Lafazanis himself insisted "several MPs including myself" would not approve the measures, but nevertheless insisted the cohesion of the party and the government would not be jeopardised.
Polls published late Tuesday by Kapa Research found 72 percent of Greeks surveyed thought the deal was necessary if tough, but many nevertheless saw it as a humiliating climbdown for a country still reeling from years of painful austerity.
Small anti-austerity protests were held in Athens and Thessaloniki, with police in riot gear closing off roads around parliament ahead of a large-scale demonstration expected late Wednesday. A strike by civil servants against the deal was disrupting travel.
Despite the turmoil, 68 percent of people said that if the political fallout from the vote should result in a new coalition, it should be led by Tsipras.
More payments due
Under the deal, Greek assets for privatisation will be parked in a special fund worth up to 50 billion euros, with some 25 billion euros of the money earmarked to recapitalise Greece's banks.
Tsipras said Greeks' savings were safe, but the reopening of the banks -- which have been closed since the end of last month -- depended on the finalising of the deal, which could take a month. The finance ministry said they would remain closed until at least Thursday.
The European Central Bank has been keeping Greek banks afloat with emergency liquidity, but it could be forced to cut off that aid if Greece misses a huge debt repayment due on Monday.
European governments are meanwhile divided over options to help Greece meet its short-term cash needs while it waits for the eurozone bailout deal to be finalised, which will likely to take at least four weeks.
The European Commission on Wednesday formally backed a controversial proposal to use an EU-wide crisis fund to cover Greece's short-term cash needs, officials said, setting up a clash with Britain and Germany.
In a sign of the concern about the fallout of the crisis, US Treasury Secretary Jacob Lew will travel to Germany and France on Wednesday and Thursday for talks.