Eurozone members have delayed the approval of more than half of the €130bn loan for Greece, raising fears the troubled economy will officially default.
The European Central Bank has suspended the use of Greek government bonds as collateral for institutions trying to access central bank loans, in the latest twist in the unfolding crisis.
US and Asian markets gave a modestly positive response to the second Greek bailout, following losses in European counterparts, as it emerged the debt-laden nation has just nine days to implement many of the conditions of the rescue.
Greece will receive emergency funding of €130bn after a second bailout of the stricken nation was agreed.
The German finance minister, Wolfgang Schäuble, is pushing to let Athens default, creating a split in the German government, according to reports.