Greek Prime Minister Alexis Tsipras said on Friday that that Greece's debt was not sustainable. He also noted that the vote "No" would not mean that Greece have to leave the Eurozone.
Tsipras also said that he asked Greece's lenders to accept a 30% haircut on the country's debt. He pointed out that he also wants a 20-year "grace period" on repaying the rest debt.
Greece's debt totals €323 billion.