Months of mounting tensions between Greece and its creditors boiled over at a high-level EU meeting on Friday with eurozone finance ministers angrily accusing their Greek counterpart of backtracking on commitments and failing to grasp the deep differences that still divide them. Athens is running desperately short of cash and many eurozone officials fear without an agreement to release some of the remaining €7.2bn in its bailout programme, the government could default as early as mid-May.