It has already been dubbed "Black Monday" -- jittery housewives, shoppers and business owners queued in vain at cash machines in Athens, where the country awoke to capital controls and shuttered banks.
The president of the European Commission will make his latest proposals later to try to avoid a Greek default, adding that Athens was 'centimetres' away from a deal when discussions broke down.
EU foreign policy chief Federica Mogherini said all sides had shown the political will needed to strike a nuclear deal with Iran, praising the "good results" despite a day of tough talks.
Crisis-hit Greece is in the "final stretch" of negotiations with creditors and could reach agreement shortly, Finance Minister Yanis Varoufakis indicated.
Austria will next week officially file a legal complaint in Brussels against state subsidies for Britain's planned new Hinkley Point nuclear power plant.
French Prime Minister Manuel Valls said that there is "still a lot of work to do" if Greece and its creditors are to reach an agreement to avert a possible default.
EU foreign ministers formally agreed to prolong to January 2016 damaging economic sanctions against Russia to ensure it fully implements Ukraine peace accords.
European Commission chief Jean-Claude Juncker voiced frustration with Greek Prime Minister Alexis Tsipras in a media report amid the deepening debt crisis.
IMF chief Christine Lagarde warned that a resolution to five months of tortuous debt talks with Greece required "adults in the room" in an apparent sideswipe at Greek officials.
Greek Prime Minister Alexis Tsipras called European Commission chief Jean-Claude Juncker, their first contact on the stand-off over a bailout deal since last week.
Greece's creditors piled pressure on cash-strapped Athens as the IMF pulled its team out of talks and the EU warned Athens to stop gambling with the possibility of default.