The International Monetary Fund says it is prepared to continue supporting Greece as long as its government adopts agreed economic measures.
'We stand ready to continue our support for Greece subject to adoption of the economic policy reforms agreed with the Greek authorities,' IMF spokeswoman Caroline Atkinson said in a statement.
The IMF statement came as the embattled Greek prime minister, George Papandreou, appealed for unity from deputies in his Socialist party after two quit in protest at austerity measures.
Papandreou is struggling to form a new government to spearhead a controversial wave of reforms necessary for the financial rescue.
The government is currently locked in tough negotiations with its European partners for a new bail-out after a previous EU-IMF package was deemed insufficient to get the stricken economy back on its feet.
Greece has warned it will be unable to pay next month's bills without a €12 billion loan instalment from the EU and the IMF, part of a broader €110 billion bail-out package agreed in May 2010.
Earlier the EU's top economic official said he expected Greece to receive the desperately needed next aid tranche in July.
'I am confident that next Sunday, the Eurogroup will be able to decide on the disbursement of the fifth tranche of loans for Greece in early July. And I trust that we will be able to conclude the pending review in agreement with the IMF,' Economic and Monetary Affairs Commissioner Olli Rehn said in a statement issued to try to calm markets.
Earlier this week, euro zone finance ministers failed to reach agreement on how private holders of Greek debt should share the cost of a new bail-out worth an estimated €120 billion before a June 23-24 summit.
French president Nicolas Sarkozy has also called on European leaders to urgently reach agreement on the best way to help Greece and avoid destabilising the euro zone.
This evening, Finance Minister Michael Noonan told Bloomberg TV Greece may receive short-term aid to cover it into autumn before further talks on any longer-term bail-out.
'I don't expect the resolution will be a three-year solution or a three-year programme, which was the intention some months ago,' he said. 'It seems to me that there will be an arrangement made to carry Greece into the autumn and then there will be another round of talks.'
