Greek Prime Minister Alexis Tsipras told US Treasury Secretary Jacob Lew his country wanted the eurozone to provide a bailout, but one that "respects the Greek people".
Prime Minister David Cameron is seeking a British exemption from European Union employment laws as part of his push to gain more autonomy from Brussels.
The European Union will help Hungary and western Balkan countries struggling with an influx of migrants, German Chancellor Angela Merkel said.
President of Kazakhstan Nursultan Nazarbayev is sure rapprochement between the Eurasian Economic Union of Russia, Kazakhstan, Belarus, Armenia and Kyrgyzstan and and the 28-nation European Union is going to take place.
German Chancellor Angela Merkel said that there was still no basis for talks on a new Greek bailout, as she arrived in Brussels for an emergency summit of eurozone leaders.
European Commission head Jean-Claude Juncker said he was against an exit by Greece from the euro, even though Greeks massively rejected bailout terms in a referendum this weekend.
EU president Donald Tusk urged the bloc to avoid sending any "dramatic messages" even if the Greeks were to vote against bailout conditions in their weekend referendum.
Greece needs 50 billion euros over the next three years, including 36 billion euros more from EU lenders, to stabilize its finances even under existing creditor plans.
Eurozone finance ministers declined to extend Greece's bailout Tuesday hours before its expiry and a possible IMF default.
Russian Foreign Minister Sergei Lavrov expressed the hope that Brussels would avoid "negative scenarios" over Greece amid fears that the country is heading for a eurozone exit.
China is expected to unveil its long-awaited national pledges to reduce carbon emissions beyond 2020, a state-run newspaper said.
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.
Italy's finance minister played down the threat of Italy being hit by the fallout from market instability linked to the Greek crisis.
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 approved the launch of the first phase of a military operation to target people smugglers in the Mediterranean.
Eurozone finance ministers will meet again in a bid to reach a final bailout deal for Greece ahead of an EU leaders' summit the following day.