Less than 48 hours before a referendum that may determine Greece’s future in the euro zone, a poll has shown that supporters of Greece’s bailout terms have taken a wafer-thin lead over the “No” vote backed by the leftist government.

The opinion poll by the respected ALCO institute, published in the Ethnos newspaper on Friday, put the “Yes” camp on 44.8 percent against 43.4 percent for the No” vote. But the lead was within the pollster’s 3.1 percentage point margin of error, with 11.8 percent saying they are still undecided.

With banks shuttered all week, cash withdrawals rationed and commerce seizing up, the vote could decide whether Greece gets another last-ditch financial rescue in exchange for more harsh austerity measures or plunges deeper into economic crisis.

It could also determine whether Greece becomes the first country to crash out of the 19-nation European single currency area, membership of which is meant to be irrevocable.

The survey found that 74 percent of Greeks want to stay in the euro, while just 15 percent want to return to a national currency, with 11 percent undecided.

Prime Minister Alexis Tsipras has urged Greeks to reject the “humiliating” terms offered last week by international creditors in a deal that is no longer on the table, and accused lenders of “blackmail” by withholding credit.

As discontent has mounted over long queues for pensions and at cash machines, Tsipras promised voters that banks would reopen as soon as the government clinched a fresh loan from its euro zone partners.

Credit ratings agency Fitch said the banks were already effectively bust and would go to the wall within days unless the European Central Bank increases emergency liquidity assistance to help them cope with a wave of withdrawals.

Reuters/NAN