Members of the public queueing outside a bank in the central Athens Syntagma district to try and withdraw their money (limited to 60 Euros a day each) from ATM machines. In the leadup to the end of Greece's bailout programme from the 'troika' (30 June 2015) Greek banks were instructed to close until the 5 July referendum and only allow people to withdraw a maximum of 60 euros per day. On 26 June 2015 Greek Prime Minister Alexis Tsipras called a surprise referendum to ask the Greek people whether they would accept further austerity imposed by the 'troika' (the International Monetary Fund, the European Central Bank and the European Commission) - ie a 'yes' vote - or reject further austerity and risk being ejected from the Eurozone - or a 'no' vote. The referendum is to be held on 5 July.