Greece’s prime minister George Papandreou will resign today, Pasok party sources have told Sky News.
A possible replacement for Mr Papandreou is currently being discussed, the sources have also indicated.
The development comes after the country’s opposition leader insisted the PM must go to save the economy.
Antonis Samaras said he was willing to help in the formation of a coalition government – but not until Mr Papandreou had stepped down.
Despite winning a confidence vote in parliament, Mr Papandreou has struggled to form a temporary coalition government to back the controversial EU bailout package.