Greek Socialist leader Evangelos Venizelos has rejected joining a coalition led by a leftist party opposed to an international bailout.
However, said he would continue efforts to form a government when he receives a mandate from the country's president.
After meeting with Left Coalition leader Alexis Tsipras, Venizelos said:
"At the current stage we cannot reach a deal, but must continue the effort."
Greece's leader of the Left Coalition party Alexis Tsipras has ruled out entering a coalition with the conservative New Democracy party, and said he would try to form a government with other leftist parties.
Speaking after talks with New Democracy leader Antonis Samaris, Tsipras said:
– Greece's leader of the Left Coalition party Alexis Tsipras
"There cannot be a government of national salvation since the signature of Mr. Samaras (on the bailout deal) did not bring salvation but caused tragedy. We're not going to let in through the window what the Greek people kicked out the door."
Greece's general election has turned the spotlight on a new political figure.
The 37-year-old leader of the Left Coalition party, Alexis Tsipras, had 15.8% with almost 40% of the vote counted, beating the socialist PASOK into second place so far.
Tsipras ran on an anti-austerity ticket arguing that the bailout or bust ultimatum thrown down by mainstream parties was a scare tactic to force people to accept cuts.