G20 leaders meet amid Greek fears

G20 leaders are meeting in France amid concerns that the eurozone's debt crisis may be worsening.

EU heads have said that the latest 8bn euro (£7bn) rescue package for Greece will not be made available until Greece has committed to austerity plans.

But on Monday, Greek PM George Papandreou shocked European leaders and financial markets by calling a referendum on the eurozone bailout plan.

Mike Wooldridge reports.