Greece debt crisis latestpublished at 10:36
In other news, Greece has become the first developed nation to default on an IMF loan, after it missed the deadline for a €1.5bn (£1.1bn) payment hours after eurozone ministers refused to extend its bailout.
Eurozone ministers say they'll discuss a last-minute request from Greece for a new two-year bailout today - but the situation has heightened fears of Greece leaving the euro.
Commenting on the situation, UK Chancellor George Osborne said Britain will "prepare for the worst".
Quote MessageIt is vital now that the current uncertainty is resolved, whatever the Greek people decide, to ensure economic and financial stability across Europe. Britain’s attitude to this developing crisis is clear: we hope for the best; but we prepare for the worst, and we stand ready to do whatever is necessary to protect our economic security at this uncertain time.”