Caption:ATHENS, GREECE - JUNE 30: A man walks past anti-EU graffiti on June 30, 2015 in Athens, Greece. Greek voters will decide in a referendum next Sunday on whether their government should accept an economic reform package put forth by Greece's creditors. Greece has imposed capital controls with the banks being closed until the referendum and a daily limit of 60 euros has been placed on cash withdrawals from ATMs. (Photo by Milos Bicanski/Getty Images)
Cash shortages and financial chaos plague Greece
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Story highlights

A proposed bailout for debt-hit Greece is set to expire at midnight CET June 30

It is aimed at avoiding a default by Greece, on a 1.7 euro payment to the IMF

Greece has said it will not make the payment and has submitted a 2-year plan

CNN  — 

Tensions are ratcheting up in Greece and the remainder of Europe ahead of the midnight CET (6 pm ET) expiration of the bailout deal offered to the debt-hit country by its creditors.

Greece in crisis: Full coverage

Greece is 323 billion euros ($352.7 billion) in debt to other European countries, the European Central Bank and the International Monetary Fund (IMF) – collectively known as the “troika.”

The sum is equivalent to more than 175% of the country’s GDP.

Germany is owed the biggest slice of debt, (56 billion euros), followed by France and Italy.

Watch: Where did all the money go?

Biggest debt default by country

A spokesman for Greece’s finance minister told CNN Tuesday it would not make the next debt payment of 160 billion euros ($1.7 billion) today, meaning it will be the biggest debt default by a country ever.

Prime Minister Alexis Tsipras’ office later released a statement saying Greece had asked for a two year bailout from Europe’s rescue fund, the European Stability Mechanism (ESM).

Caption:ATHENS, GREECE - JUNE 29: Demonstrators during a rally in Athens, Greece, 29 June 2015. Greek voters will decide in a referendum next Sunday on whether their government should accept an economic reform package put forth by Greece's creditor. Greece has imposed capital controls with the banks being closed untill the referendum. (Photo by Milos Bicanski/Getty Images)
Greek protests ahead of likely default
06:12 - Source: CNN

To avoid defaulting, Greece needed to reach an agreement ) for the final 7.2 billion euro ($7.9 billion) installment of a 240 billion euro ($262 billion) European bailout.

Read: Greek debt crisis: Who has most to lose?

But Tsipras walked out of European Union talks Friday, effectively rejecting the latest incarnation of the bailout offer, which required his anti-austerity government to agree to economic reforms.

What referendum entails

Tsipras has described the proposed terms as “blackmail” and said he will urge Greeks to vote against the bailout offer in a referendum scheduled for five days time.

The Yes/No referendum will ask whether the troika’s proposal, submitted on June 25, be approved.

With that draft proposal set to expire, Greeks may be voting on a bailout offer that no longer exists and on Monday Tsipras hinted that he might quit if they back the deal he rejected.

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Referendum is a 'charade,' says Greek commerce leader
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Read: What the Greek crisis means for you

Emergency financial assistance is what has been keeping the Greek economy afloat and the specter of a default has raised fears that Greece may be forced to exit the eurozone – the so-called “Grexit.”

Commentators have suggested a Grexit could lead to other indebted states to also default, undermining the euro currency as well as triggering financial meltdown in Greece itself.

What Greek citizens want

Residents in Athens spoken to by CNN Money last week expressed contrasting views over a potential Grexit.

“I am worried about austerity. But we owe money, and we have to pay it back, otherwise nobody in Europe will trust us,” said Glina Klitoraki.

“We are worried about leaving Europe, it would be very bad for Greece, very bad for jobs. Nobody would come here any more.”

Meantime Manolis Spathis, 29, said he had become a full-time activist after six-months of unemployment.

“I want a Grexit [from the eurozone]. I believe that is the only solution. To cancel the debt, the whole debt,” he said. “The ECB wouldn’t support us anyway. We have to take the first step, cross the line. I think we should nationalize the banking system.”

Read: If Greece leaves Euro, who cares?

Read: Is Europe dead?

Banks shut, stocks fall

Greeks line up at ATM
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Greece took preemptive measures Monday, closing its banks and markets until July 6 – a move that concerned global investors, causing European stocks to fall.

The government in Athens also restricted Greek residents to withdrawals of 60 euros per day (U.S$66), leading to queues at ATMs.

The closure of banks caused a surge in Greeks registering to trade bitcoins.

Is it safe to holiday in Greece?

Ahead of the potential default, visitors have also been warned to travel with plenty of cash.

With an expected 25 million visitors this year set to contribute up to a quarter of Greece’s income in 2015, the country wants to reassure them that their vacations are safe.

“As summer season begins, we are prepared to ensure tourists’ safety and enjoyment,” Andreas Andreadis, president of the Greek Tourism Confederation told CNN.

Read: Is it time to cancel your Greek vacation?

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What tourists can expect while visiting Greece
02:37 - Source: CNN