Off to the polling stationpublished at 11:41
Greek voter tweets....
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)
James Reevell, Bernadette McCague, Roland Hughes, Paul Kirby, Camila Ruz, Claudia Allen and Emma Harrison
Greek voter tweets....
Yanis Varoufakis speaks after voting
Quote MessageToday, after five years of failure, the Greek people have the opportunity to decide on the last ultimatum of the Eurogroup, the institutions and our partners. This is about a holy moment. A moment of hope for the whole of Europe. A moment that gives hope to Europe that the common currency and democracy can co-exist, and they do co-exist.
Paul Hallett tweets...
As Greek bride Irene posed for wedding photographs with her bridesmaids outside the Greek Parliament building in Athens, she declared to tourists as she gave a victory sign: "The only time I will say 'yes' today is to my new husband."
Speaking on the BBC's Andrew Marr Show, UK Chancellor George Osborne says the UK is making preparations for the referendum result.
He said:
Quote MessageWe have the plans in place for whatever the outcome is. The prime minister will be chairing a meeting tomorrow morning with myself, the governor of the Bank of England and others to assess the situation. But I don't think anyone should be in any doubt, the Greek situation has an impact on the European economy, which has an impact on us.
Email: haveyoursay@bbc.co.uk
George, Fran and Paul:
Wouldn't know there was a referendum taking place in Lefkada (major Greek island) - everyone is too busy drinking beers on yachts and eating sardines in the square.
The BBC has spoken to some voters at a polling station to gather their opinions.
More from the BBC's Europe Editor...
BBC's Joe Lynam tweets from a polling station...
Allow Twitter content?
This article contains content provided by Twitter. We ask for your permission before anything is loaded, as they may be using cookies and other technologies. You may want to read Twitter’s cookie policy, external and privacy policy, external before accepting. To view this content choose ‘accept and continue’.
Greek Finance Minister Yanis Varoufakis has voted at a polling station in Athens.
BBC Europe Editor tweets...
A contributor tweets...
The BBC's Joe Lynam tweets...
The leader of the pro-European New Democracy party and former prime minister, Antonis Samaras, said the referendum was about Greece's future with Europe.
After casting his vote he said:
Quote MessageToday, we Greeks are deciding on the fate of our country. We are voting 'Yes' to Greece. We are voting 'Yes' to Europe.
This Greek voter sits down and reads through her ballot paper:
Tim Franks in Athens spoke to a Greek man who told him his country was "stuffed":
BBC Europe Editor tweets...
Andrea Herrera, who has been speaking to voters in Paros, Greece, emails:
It's a happy day here. People feel empowered. They have a say in true Athenian Democratic Spirit. We get a sense that people are proud to say No! No one has admitted to saying Yes - it's a more elitist vote or fear vote. All agree that situation is uncertain, Greece divided and anyway in a very difficult situation. Happy to take part in this "democratic exercise" but don't really understand or know what either outcome will imply.
Andrea Herrera has sent us this picture of people queuing for an ATM in Paros, Greece.