Greek crisis: Yanis Varoufakis accuses Europe of terrorism - as it happened

• Wolfgang Schiuble softens German approach
• Yanis Varoufakis: troika "spreading fear", wants to "humiliate" Greeks
• No vote does not mean euro exit, says Donald Tusk
• Greek banks deny plan to raid depositors' savings
• London solidarity rally follows events in Rome, Paris and Brussels

6.08pm BST

The polls will be opening in less than 13 hours and it feels like time for a closing summary.

Greece is a member of the eurozone. There's no doubt about that. Whether with the euro or temporarily without it: only the Greeks can answer this question.

What they're doing with Greece has a name -- terrorism. What Brussels and the troika want today is for the yes (vote) to win so they could humiliate the Greeks.

5.34pm BST

One of the most influential architects of the European Union has called on its current leaders to do everything they can to rescue Greece, including looking at its debt burden "without delay".

Jacques Delors, who was responsible for deepening European integration when he was president of the Commission from 1985-93, called on the EU to adopt a three-part rescue plan for Greece.

The Greek drama is not solely national: it will have effects on all of Europe.

An exit from the current crisis means a change in view from Greece... it requires the expression of a clear will to break with the last forty years.

4.50pm BST

Are we getting smoke signals from the European Commission?

The most senior advisor to Jean-Claude Juncker, the president of the Commission, has been assiduously tweeting his boss's thoughts on the Greek government this afternoon.

4.14pm BST

The division in Greece over Sunday's referendum is reflected in the country's newspapers, which are split between yes and no.

No means immediate deposit haircut, banks and ATMs closed, rationing of food, medicine and gas, and, in the end, drachma and national tragedy.

The referendum is the way through which the people take an active role in the negotiations, regardless of whether they choose yes or no.

3.42pm BST

Greece solidarity rallies are now underway in London and Dublin.

Londoners stage rally to show support for Greece as country faces crunch referendum http://t.co/iLvzhbckzs pic.twitter.com/5tt50T97uQ

Demonstrators in solidarity with Greece now on Molesworth Street in Dublin. #Greece pic.twitter.com/EpvzrY0CnL

3.29pm BST

Italy's prime minister Matteo Renzi has said his country is no longer a "companion in misfortune" of debt-ridden Greece, as it was three or four years ago.

We need to stop calling Italy the sick man of Europe, because it's no longer true.

3.07pm BST

Only war or the great depression of the 1930s has proved more destructive than Greece's debt crisis and austerity years. This graph brings home the scale of Greece's economic collapse.

Greece's GDP collapse is among the worst advanced economy falls since 1870. And most of those were war-related. pic.twitter.com/QLp6fYN83u

Greek banking deposits...an almost uninterrupted 5 year decline. #Greece #GreeceCrisis pic.twitter.com/MGiY7D7xUv

#Greece export growth was the big hope...it hasn't worked - Spain, Portugal and Italy all fared better. #GreeceCrisis pic.twitter.com/h3ViP5jLK3

2.36pm BST

Greece faces more instability and could see a rise in political extremism, no matter what the outcome of Sunday's referendum.

That is the verdict of the Economist Intelligence Unit, which forecasts a victory for the no side.

The EIU forecasts victory for the no camp, but whatever the outcome of the referendum, the stark divisions exposed by the referendum campaign are no basis for a future stable political equilibrium. This, as well as intransigence by Greece's creditors, will make it difficult to reach a viable agreement on a future financing programme.

Greece today is angry and fearful, divided and conflicted, and will still be after Sunday's vote. This means that Greece is headed for an even more tumultuous period ahead. With Greek society under immense strain and political divisions becoming sharper, the potential for political extremism will increase.

Thanks to this ill-advised plebiscite, Greece faces major turmoil that will test the democratic institutions it established after 1974. The country doesn't need a return to the worst excesses of student politics. Still less does it need the overheated rhetoric of violent struggle, national disaster and civil war that is already in the air.

1.51pm BST

Greek banks were quick to deny rumours that they were going to seize a tranche of savers' deposits - aka a "haircut" in financial slang.

Greek people have been no less quick to respond.

1.40pm BST

Syntagma Square, Athens, the morning after the demo the night before pic.twitter.com/i2tXIXX9PJ

1.38pm BST

It is not only Greeks who have been taking to the streets.

Rallies in support of Greece are due to get underway across the UK, in London, Liverpool and Edinburgh.

1.09pm BST

In an earlier entry, I posted this photograph that sums up how deeply sad the debt crisis is for ordinary Greek people.

Giorgos Chatzifotiadis had queued up at three banks in Greece's second city of Thessaloniki on Friday in the hope of withdrawing a pension on behalf of his wife, but all in vain.

When he was told at the fourth that he could not withdraw his a120 (86, $133), it was all too much and he collapsed in tears.

Recounting how he had gone from bank to bank in a futile attempt to collect his wife's pension, Chatzifotiadis said when he was told at the fourth "that I could not get the money, I just collapsed".

Both he and his wife, like many Greeks in the north of the country, had spent several years in Germany where he "worked very hard" in a coal mine and later a foundry.

But Chatzifotiadis feels he can do little to change the situation, and he is not even sure if he would be able to vote at Sunday's referendum on whether to accept international creditors' bailout conditions.

European leaders have warned that a 'No' vote would also mean no to the eurozone.

12.45pm BST

The banks may be running out of money, but Greece is not short of creativity. Greece's five-year debt crisis has created a thriving anti-austerity art movement.

Jon Henley has been speaking to some of the artists.

Greece's anti-austerity murals: street art expresses a nation's frustration http://t.co/InzWh0ph1y pic.twitter.com/SXxB8uACEd

Former photographer Cacao - responsible for works including "aurope without Greece is like a party without drugs", "Cut the Debt", "IMF Go Home", and the now infamous "Then they used tanks. Now they use banks" - said Greece's long-flourishing street art scene had exploded since the crisis began.

"Partly it was because of this big wave of anger that started in 2008 and just grew and grew," he said. "But also, as the crisis got worse, there were more and more closed shops and empty buildings. There were a lot of walls to paint."

12.13pm BST

Spotted...

12.10pm BST

The Guardian's Southern Europe editor John Hooper visited the yes rally on Friday night and sent us this report.

The 'yes' campaign managed to get up an altogether more rumbustious - and better-attended - demonstration than the one on Tuesday in Syntagma Square, which was marred by rain. Supporters of an agreement turned the centre of the open-air - and open-ended - Panathenaic Stadium in central Athens into a sea of Greek flags dotted with some EU ones. They also spilled out for about 50 yards down the avenue that runs across the stadium's open side.

12.01pm BST

Here is some footage from the no rally on Syntagma square on Friday night.

One voter summed up her hopes:

I hope the no [vote] is so powerful that we can see better days, because if people say yes they will be condemned.

11.50am BST

Photo of a Greek pensioner crying really sums up how sad the situation is. #GreekCrisis http://t.co/0pIWOeBGoO pic.twitter.com/vdl1UROpcs

11.36am BST

Germany's finance minister has said there will be no quick deal with Athens after Sunday's referendum.

In an interview with top-selling tabloid Bild, Wolfgang Schiuble forecast difficult talks, although he promised that the Greek people would not be left in the lurch.

Greece is a member of the eurozone. There's no doubt about that. Whether with the euro or temporarily without it*: only the Greeks can answer this question. And it is clear that we will not leave the people in the lurch.

Even if it came to a collapse of some individual banks, the risk of contagion is relatively small.

The markets have reacted with restraint in the last few days. That shows that the problem is manageable.

11.14am BST

The Guardian's Jon Henley takes the temperature at Athens airport.

Taking off myself soon so little time but have now met 7 diaspora Greeks from 3 countries at airport and not a No among them ... #Greece

Marina, bank employee, arriving to vote from London: "You kidding? Tmrw is biggest day in #Greece in 40 yrs. It's got to be a Yes."

Minimal q at ATM in arrivals at Athens airport. Most tourists forewarned and holding folding a #Greece pic.twitter.com/NuseC39KcQ

10.46am BST

Greece's finance minister Yanis Varoufakis has compared the action of his country's European creditors to terrorism.

Never one to fear giving offence, the outspoken minister told El Mundo that the country's lenders were trying to instil fear.

What they're doing with Greece has a name -- terrorism. What Brussels and the troika want today is for the yes (vote) to win so they could humiliate the Greeks.

Why did they force us to close the banks? To instil fear in people. And spreading fear is called terrorism.

Because there's too much at stake, as much for Greece as for Europe, I'm sure. If Greece crashes, a trillion euros - the equivalent of Spain's GDP - will be lost. It's too much money and I don't believe Europe could allow it.

10.12am BST

Greek authorities have move swiftly to deny a report that banks are planning to raid depositors' funds to prevent the financial system from collapsing.

There are no such scenarios at any Greek bank, not even as an exercise on paper.

10.02am BST

Good morning and welcome to our rolling coverage of the Greek debt crisis.

Greece is on the brink of one of its most important votes since returning to democracy more than 40 years ago.

It's very clear that the referendum is not " about being in the eurozone or not. No, in fact, nobody's interested - I hope nobody's interested - in this kind of choice.

Maybe we will have to get used to living with a country as a member of the eurozone in bankruptcy.

Greece's economy is on the brink of collapse after the capital controls imposed ahead of Sunday's referendum left the country with shortages of food and drugs, the tourist industry facing a wave of cancellations and banks with barely enough money to survive the weekend.

Banks said they had a a1bn cash buffer to see them through the weekend - equal to just a90 (64) a head for the 11 million-strong population - and would require immediate help from the European Central Bank on Monday whatever the result of the referendum, in which the two sides are running neck and neck.