Eurozone finance ministers say they expect to hear fresh proposals from Greece after a referendum rejected the terms of an international bailout.
Global stock markets proved resilient despite Greece's rejection of austerity demands - Japan's stock market opened 1.25% higher on Tuesday, and other markets closed stronger than expected on Monday.
Record-breaking numbers of migrants are arriving on the Greek island of Lesbos, overwhelming local authorities, local police say.
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The Greek PM presents his country's debt crisis as a fight for EU democracy and justice, BBC Europe editor Katya Adler reports.
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