Greece's new Prime Minister says there will be no debt default, amid turmoil on Greek financial markets.
Alexis Tsipras has told his first cabinet meeting since winning Sunday's election that a renegotiation of Greece's international bailout is the government's priority.
But the European Union is warning Athens to stick to its commitments.
And Greek banking shares have been plummeting in Wednesday trading - while yields on Greek government debt have been soaring, a sign that investors see them as more risky.
Mr Tsipras' team has already announced it is putting major privatisation projects on hold.
British Prime Minister David Cameron has joked in the House of Commons that his Greek counterpart needs to adopt Mr Cameron's economic slogan.
IN: "I have...
OUT: ...all sides."
DUR: 31 seconds