Greek voters have decisively rejected the terms of an international bailout in a referendum
The final count is 38.7% "Yes" and 61.3% "No"
Turnout in the referendum was 62.5%
A summit of eurozone heads of states has been called for Tuesday
All times BST (GMT+1)
Mr Tsipras said his country was determined to decide its own "destiny" in the eurozone.
After casting his ballot in Athens, he said:
Quote MessageNo one can ignore the message of determination of a people taking its destiny in its own hands.
PM Alexis Tsipras voted in Athens surrounded by the world's media.
Image source, ReutersThe economist, Vicky Pryce, told the BBC there is a lot of confusion surrounding the referendum question:
Quote MessageNobody would have read that very, very long background paper, two papers behind the question of today. And they'll be voting more in terms of passion rather than logic.
Another Athens voter, Ioannis Nikolaou, disagreed:
Quote MessageI voted for Tsipras and want to vote 'No' because I've lived in Europe and know what rights Europeans and Greeks have. For that reason alone. They don't have the same rights.
Nikolaos Papadopoulos, a voter in Athens, told the Associated Press news agency that he voted "Yes":
Quote MessageI believe in a democracy, in a united Europe, in a world with a good economy, and I want us all to work together to move forward and not to be retrogressive.
Here's Mr Tsipras voting:
Image source, ReutersPM Alexis Tsipras has arrived at a polling station in Athens to cast his vote.
The BBC's Mark Lowen takes to the beach to explain the implications of the vote with the help of some pebbles, the tide and a bat and ball.
Greek Prime Minister Alexis Tsipras is due to vote at a polling station in Athens.
The short timescale meant special measures were used to get everything ready.
An official in the local administration on the island of Naxos, Dimitris Lianos, told the BBC:
Quote MessageUsually, when we have Greek elections all this material, all these papers, they come by boats. But due to the fact that this referendum took place in a very short time, they had to use the army helicopters and each island got all these boxes by helicopter.
The Greek authorities have not had long to organise this referendum - it was announced by Greek Prime Minister Alexis Tsipras on 27 June.
Image source, ReutersThe BBC's Mark Lowen tweets from Athens...
Germans feel sympathy for Greece's people, but impatience and irritation with its government, writes Jenny Hill in Berlin .
The BBC's Joe Lynam tweets...
Professor of cultural studies at the University of Melbourne, Nikos Papastergiadis, told the BBC that the large Greek diaspora in Australia are watching events back in their homeland.
Quote MessageWe are very concerned about the well-being of our fellow countrymen in Greece, but also very proud of their courage, that they've shown in the face of such adversity, enduring the world's worst recession, and also standing up to this, kind of, bullying activity that's going on from Europe right now. We are very proud indeed of the courage and absolute resistance that's been shown to policies that have been proven to be a failure in Greece.
Leader of New Democracy Antonis Samaras has cast his vote, according to Greek news site Enikos
The BBC's Ros Atkins takes a look at the numbers behind the debt crisis vote here .
UK Prime Minister David Cameron has said the poll will essentially amount to an "in/out" vote on Grexit - whether Greece should leave the eurozone.
The Greek government denies it amounts to a vote on Greece's place in the euro.
It's not short
Here's the wording of the question facing Greek voters today. For those who can't read Greek, a translation and full explanation is here.
