Greek banks remain shut on Tuesday as the nation looks set to formally default on a $1.8 billion loan repayment to the International Monetary Fund.
While the country's economic future remained uncertain early Tuesday, the Greek finance ministry said it will open about 1,000 bank branches across the country to allow pensioners, many of whom do not have ATM cards, to withdraw enough money to get through the week.
Greeks are set to vote July 5 in a referendum on a new round of European austerity measures, which Prime Minister Alexis Tsipras opposes.
Mr. Tsipras said Monday he will respect the outcome of Sunday's referendum, but he cautioned that his far-left government will not be the one to carry out the new reforms. European creditors are demanding the reforms in exchange for billions of dollars in new bailout money.