Greece is expected to form a new coalition government Tuesday, officials said, dpa reported.
Among the favourites to replace George Papandreou as prime minister are former vice-president of the European Central Bank Lucas Papademos, International Monetary Fund representative Panagiotis Roumeliotis and EU ombudsman Nikiforos Diamantouros.
"We hope today to have a new government," an official from the Conservative party told dpa.
An interim meeting of ministers is scheduled for midday. Local media say that Papandreou will resign, and the new, broad-based coalition government will be announced.
Both Papandreou, prime minister from the socialist PASOK party, and Antonis Samaras, leader of the conservative opposition, met with Greek President Karolos Papoulias on Sunday and agreed to form a transitional national government to push through reforms demanded by the European Union as a condition for receiving more bailout money.
Papandreou threw that eurozone deal into chaos by unexpectedly calling - then rescinding - a referendum on the deal last week.