Greece debt default crisis
Pensioners wait in line in front of the main entrance of a National Bank branch to receive part of their pension in Athens, Greece, July 6, 2015. Greeks overwhelmingly rejected conditions of a rescue package from creditors, throwing the future of the country's euro zone membership into further doubt and deepening a standoff with lenders.
Greece debt crisis
Greek Finance Minister Yanis Varoufakis gives a press conference in Athens on July 5, 2015, after early results showed those who rejected further austerity measures in a Greek crucial bailout referendum were poised to win.
Greece debt crisis
Members of the security escort Greek Prime Minister Alexis Tsipras (C) as he leaves a polling station after voting in Athens on July 5, 2015.
Tsipras, who campaigned against the rescue package after his left-wing Syriza party was swept into office in April on a tide of public dissent over the government spending cuts and tax hikes, described the vote as a "victory of democracy."
Greece debt crisis
A pensioner argues with an official as they scuffle to enter a National Bank branch to receive part of their pensions in Athens, Greece, July 6, 2015.
While Greek voters resoundingly said "no" to austerity, polls also show overwhelming support for remaining within the eurozone. Those goals may be incompatible, given European leaders' dislike for Tsipras and resistance within the trading bloc to negotiating another bailout.
Greece debt crisis
Pensioners are given priority tickets as they wait to receive part of their pensions at a National Bank branch in Athens, Greece, July 6, 2015.
Greece debt crisis
Greece is now considerably closer to exiting the eurozone. A "Grexit," as it is called, would make Greece the first state to leave the 19-member currency union since the euro was formally created in 1999. That would cause domestic economic chaos in the short-term and, more worryingly for Europe, raise fundamental questions about the viability of the eurozone.
In this photo, a tattered Greek flag flutters in the village of Meyisti on the Island of Kastellorizo which is the most easterly of the islands in Greece, July 4, 2015.
Greece debt crisis
A boy holds a Greek national flag as people celebrate in front of the parliament on July 5, 2015 in Athens after early results showed those who rejected further austerity measures in a crucial bailout referendum were poised to win. Greek voters headed to the polls July 5 to vote in a historic, tightly-fought referendum on whether to accept worsening austerity measures in exchange for more bailout funds, in a gamble that could see the country crash out of the euro.
Greece debt crisis
Referendum campaign posters that reads "No" in Greek are seen as people line up at an ATM outside a National Bank branch during a referendum vote in Athens, Greece, July 5, 2015. Greece voted on Sunday on whether to accept more austerity in exchange for international aid.
Greece debt crisis
Voting officials count votes after polls are closed in Athens on July 5, 2015 in Athens, Greece. The people of Greece went to the polls to decide if the country should accept the terms and conditions of a bailout with its creditors.
Greece debt crisis
A riot policeman holds a chair during minor clashes with demonstrators as tensions rise before a rally organized by supporters of a 'No' vote in Athens, Friday, July 3, 2015.
Greece debt crisis
The Greek government announced June 27, 2015 that the nation's banks would remain closed for six business days after Prime Minister Alexis Tsipras called for a referendum on whether to accept a bailout offer from Greece's creditors.
Greeks were scheduled to vote July 5, 2015. The brief but intense campaign in Greece's critical bailout referendum ended Friday, July 3, 2015 with simultaneous rallies in Athens supporting "yes" and "no" answers.
Here, pensioners, waiting outside a closed National Bank branch and hoping to get their pensions, argue with a bank employee in Iraklio on the island of Crete, Greece on June 29, 2015.
Greece debt crisis
A 'Yes' supporter waves a Greek flag on arrival for the pro-Euro rally at the Panathenean stadium in Athens, July 3, 2015.
Greece debt crisis
An elderly man cries outside a national bank branch as pensioners queue to get their pensions, with a limit of 120 euros, in Thessaloniki on July 3, 2015.
Greece debt crisis
Protesters block a street during an anti-austerity rally organized by the Blockupy movement in support of the Greek government in Berlin, July 3, 2015.
Greece debt crisis
A 50 euro banknote is stuck onto a Greek flag with stickers reading "Yes to Greece, yes to Europe" on July 3, 2015 in central Athens, during a rally supporting a 'Yes' vote on the upcoming Greek referendum on its bailout terms.
Rival rallies swelled in central Athens late on July 3 ahead of a referendum the Greek government called to bolster it in its struggle with creditors.
Greece debt crisis
Thousands of 'No' supporters gather in front of parliament in Athens, July 3, 2015.
Greek Prime Minister Alexis Tsipras was cheered wildly as he arrived Friday, July 3 at a pro-'No' rally in Athens' Syntagma Square, two days before a crucial bailout referendum.
Greece debt crisis
Thousands of 'No' protesters gather in front of the parliament building in Athens, July 3, 2015.
Greece debt crisis
A pensioner (C) is squeezed as she waits outside a National Bank branch to receive part of her pension in Athens, July 1, 2015.
Greece was appealing to its eurozone partners and the European Central Bank July 1 to keep it afloat after defaulting on its debt to the International Monetary Fund and losing frozen international bailout money.
Greece debt crisis
Pro-Euro supporters attend a rally in front of the parliament building, in Athens, June 30, 2015.
Greek Prime Minister Alexis Tsipras had called for a referendum on whether to accept a bailout offer from Greece's creditors.
Greece debt crisis
A Greek riot police officer adjusts his helmet as he takes position in front of the Bank of Greece during demonstrations in Athens, June 30, 2015.
Greece debt crisis
Residents follow the latest news headlines, as Greece prepared for a national referendum on whether to accept a bailout offer from Greece's creditors, in central Athens, June 30, 2015.
Greece debt crisis
People stand in a queue to use an ATM outside a closed bank in Athens, Tuesday, June 30, 2015.
Greece owes a roughly 1.6 billion-euro ($1.87 billion) debt to the International Monetary Fund.
Greece debt crisis
A demonstrator shouts slogans during a rally organized by supporters of the "Yes" vote for the upcoming referendum in Athens on June 30, 2015.
Greece was set to become the first developed nation to miss a debt repayment to the International Monetary Fund.
World stock markets plunge
A trader works on the floor of the New York Stock Exchange shortly before the closing bell, June 29, 2015.
U.S. stocks fell sharply in heavy trading and the S&P 500 and the Dow had their worst day since October after a collapse in Greek bailout talks intensified fears that the country could be the first to exit the euro zone.
World stock markets plunge
A headline concerning Greece's debt crisis scrolls across a stock ticker at the New York Stock Exchange in the afternoon on June 29, 2015 .
The Dow plunged 300 points as the Greek debt crisis worsened amid fears that Greece will be unable to pay the almost $1.8 billion that it owes the International Monetary Fund on July 1, 2015.
Greece debt crisis
People wait in line to withdraw 60 euros from an ATM after Greece closed its banks on June 29, 2015 in Athens, Greece.
Greeks struggled to adjust to shuttered banks, closed cash machines and a climate of rumors and conspiracy theories on June 29, 2015 as a breakdown in talks between Athens and its creditors plunged the country deep into crisis.
Greece debt crisis
A security worker brings money to a National Bank branch in Athens, June 28, 2015.
Greece's European partners shut the door on extending a credit lifeline to Athens, leaving the country facing a default that could push it out of the euro and cause ripple effects across the European economy and beyond.
Greece debt crisis
People watch a live TV interview with Greek Prime Minister, Alexis Tsipras, at a restaurant in Athens on June 29, 2015.
Greece debt crisis
A trader sits in front of his screens where Greek Prime Minister Alexis Tsipras is being displayed at the stock exchange in Frankfurt am Main, Germany, on June 29, 2015.
Greece debt crisis
A technician, left, assists Greek Prime Minister Alexis Tsipras, center, as an aide gives him his notes before a TV interview at the State Television (ERT) station in Athens, June 29, 2015.
Anxious pensioners swarmed closed bank branches Monday and long lines snaked at ATMs as Greeks endured the first day of serious controls on their daily economic lives ahead of a July 5 referendum that could determine whether the country will ditch the euro currency and return to the drachma.
Greece debt crisis
Prostesters stand below a banner reading ''No Debt'' in reference to the forthcoming referendum on bailout conditions set by the country's creditors, during a demonstration in front of the Greek parliament in Athens, June 29, 2015.
Greece debt crisis
An employee sits in the Athens stock exchange on June 29, 2015 in Athens, Greece.
Greece closed its banks and imposed capital controls on June 28 to prevent Greek people from withdrawing all their savings from the banks.
The stock exchange was shut, and banks will remain closed until July 6.
Greece debt crisis
Protesters participate in a demonstration in front of the Greek parliament in Athens, June 29, 2015.
Greece debt crisis
A protester with the ''NO'' slogan on her wrist in reference to the forthcoming referendum on bailout conditions set by the country's creditors, participates in a demonstration in front of the Greek parliament in Athens, June 29, 2015.
Greece debt crisis
An Indian woman walks near a television display screen showing news of the Greece debt crisis at the Bombay Stock Exchange (BSE) office in Mumbai, India, June 29, 2015.
Greece debt crisis
An elderly woman looks through the closed shutters of a bank as other elderly people, who usually get their pensions at the end of the month, wait outside a closed bank in Athens, on June 29, 2015.
Greece's five-year financial crisis took its most dramatic turn yet, with the cabinet deciding that Greek banks would remain shut for six business days and restrictions would be imposed on cash withdrawals.
Greece debt crisis
The silhouette of a woman applauding is seen on a Greek flag during a pro-Greece protest in front of the European Union office in Barcelona, June 29, 2015.
Greece debt crisis
A pensioner waits outside a closed National Bank branch at the bank's headquarters in Athens, Greece on June 29, 2015.
Greece's Prime Minister Alexis Tsipras called for a referendum on whether to accept a bailout offer from Greece's creditors.
Anti-austerity rally
Demonstrators during an anti-austerity rally in Athens, June 29, 2015.
Anti-austerity rally
Protesters attend an anti-austerity rally in front of the parliament building in Athens, June 29, 2015.
Stunned Greeks faced shuttered banks, long supermarkets lines and overwhelming uncertainty as a breakdown in talks between Athens and its international creditors plunged the country deep into crisis.
Greece debt crisis
Greek Prime Minister Alexis Tsipras delivers a speech during a parliamentary session in Athens, June 28, 2015.
Greece held a referendum on July 5, 2015 on whether to accept a bailout offer from Greece's creditors that is conditioned on the government making deeper cuts to retirement benefits and imposing other "austerity" measures.
Greece debt crisis
Demonstrators gather to protest against the European Central Bank's handling of Greece's debt repayments, in Trafalgar Square in London, June 29, 2015.
Stunned Greeks faced shuttered banks, long supermarkets lines and overwhelming uncertainty on Monday as a breakdown in talks between Athens and its international creditors plunged the country deep into crisis.
Finance Minister Yanis Varoufakis
Greek Finance Minister Yanis Varoufakis (C) and head negotiator with Greece's lenders Euclid Tsakalotos (L) arrive at Prime Minister Alexis Tsipras' office in Athens, June 28, 2015.
Tsipras on June 28, 2015 announced a bank holiday and capital controls in Greece after Greeks responded to his surprise call for a referendum on bailout terms by pulling money out of banks.
Anti-austerity rally
A protester holds a Greek flag during an anti-austerity rally in Athens, June 29, 2015. The word on the flag reads "No."
Anti-austerity rally
A riot police officer stands guard in front of the parliament building during an anti-austerity rally in Athens, June 29, 2015.
Greece debt crisis
Protesters stand below a banner reading ''No Debt'' in reference to the forthcoming referendum on bailout conditions set by the country's creditors, during a demonstration in front of the Greek parliament in Athens on June 29, 2015.
Greece shut its banks and the stock market and imposed capital controls after creditors at the weekend refused to extend the country's bailout past the June 30 deadline, prompting anxious citizens to empty ATMs.
Greece debt crisis
Protesters shout slogans during a demonstration in front of the Greek parliament in Athens on June 29, 2015.
Greece debt crisis
Protesters take part in a demonstration in front of the Greek parliament in Athens on June 29, 2015.
Greece debt crisis
Demonstrators during an anti-austerity rally in Athens, Greece, June 29, 2015.