Greece has warned the International Monetary Fund and Germany to “stop playing with fire" in the handling of the country's debt crisis.
Opening a meeting of his Syriza party, Greek Prime Minister Alexis Tsipras said he was confident that a solution would be found.
He made the statements a day after talks between Greece and its creditors ended in Brussels with no breakthrough.
"We expect as soon as possible that the IMF revise its forecast.. so that discussions can continue at the technical level," he said.
Tsipras also called on German Chancellor Angela Merkel to "encourage her finance minister to end his permanent aggressiveness" towards Greece.
Months of feuding with the IMF has raised fears of a new debt crisis.
Greece is embroiled in a row with its eurozone paymasters and the IMF over debt relief and budget targets that has rattled markets and revived talk of its place in the euro.
Athen faces debt repayments of $7.44 bn this summer that it cannot afford without defusing the feud that is holding up new loans from Greece's 86 bn euro bailout.
Breaking the stalemate in the coming weeks is seen as paramount with elections in the Netherlands on March 15 and France in April through June threatening to make a resolution even more difficult.
Eurogroup Chief Jeroen Dijsselbloem said progress had been made in the Brussels talks with Greek Finance Minister Euclid Tsakalotos and other EU and IMF officials. He refused to provide more details.
Dijsselbloem warned on Friday that the next meeting of eurozone ministers on February 20 - seen as an unofficial deadline ahead of the votes - would still be too early for a breakthrough.
"We will take stock of the further progress during that meeting," said Dijsselbloem.