German Chancellor Angela Merkel has ruled out cancelling any of Greece`s debt, saying banks and creditors have already made substantial cuts.
But Mrs Merkel told the Hamburger Abendblatt newspaper she still wanted Greece to stay in the eurozone.
Greece`s left-wing Syriza party won last weekend`s election with a pledge to have half the debt written off.
Its finance minister said the "troika" of global institutions overseeing Greek debt was a "rotten committee".
The troika - the European Commission, European Central Bank and International Monetary Fund - had agreed a €240bn (£179bn; $270bn) bailout with the previous Greek government.
But new Finance Minister Yanis Varoufakis has refused to work with the troika to renegotiate the bailout terms and has already begun to roll back the austerity measures the creditors had demanded of the previous government.
Meanwhile, EU economic and financial affairs commissioner Pierre Moscovici told the BBC`s Hardtalk that Greece had to honour its previous commitments, although he said he wanted Greece to remain in the eurozone.
`Blackmail`
Mrs Merkel told the Hamburger Abendblatt: "I do not envisage fresh debt cancellation."
She said: "There has already been voluntary debt forgiveness by private creditors, banks have already slashed billions from Greece`s debt."
Greece still has a debt of €315bn - about 175% of gross domestic product - despite some creditors writing down debts in a renegotiation in 2012.
More about:
