From 49.5 to 54.5 percent of voters in Greece said "No" to the bailout proposals tabled by the country's international creditors, while from 45.5 to 50.5 percent voted in favor of the deal, the results of four opinion polls showed Sunday, Sputnik reported.
"The overall estimate is that "No" vote is leading," sociologists told ERT TV channel.
On Sunday, Greek voters have been taking part in a referendum to determine whether Greece should accept the lenders-proposed bailout plan that envisages serious spending cuts and tax increases.