Updated

A day after Greece appeared on a collision course with its creditors, new radical left Prime Minister Alexis Tsipras has tamped down the rhetoric by vowing to pay off debts and not act unilaterally.

Finance Minister Yanis Varoufakis, who had a tense meeting with Eurogroup leader Jeroen Dijsselbloem in Athens on Friday, has brought forward a trip to Paris, London and Rome to meet his counterparts.

Tsipras says he never intended to act unilaterally and expressed his certainty that Greece and the creditors will reach an agreement.

He also pledged to pay back Greece's debt to the European Central Bank and the International Monetary Fund, which, along with the European Commission, form the "troika" of Greece's creditors.