US President Barack Obama has discussed Greece’s debt crisis with German Chancellor Angela Merkel on phone, according to the White House.
"We continue to encourage all sides to participate constructively in those conversations," White House spokesman Josh Earnest said on Tuesday.
Earlier in the day, Obama spoke to Greek Prime Minister Alexis Tsipras by telephone just before an emergency eurozone summit in Brussels.
Tsipras briefed Obama on Greece's request for a loan to save its economy, according to a Greek government official.
The official said the US president had expressed hopes for a successful outcome to the negotiations between the Greek government and its international lenders.
Merkel said as she arrived for the emergency summit that "we still do not have the basis for negotiations."
On Sunday, the German chancellor and French President Francois Hollande called for a summit of the European Union following the rejection of another tough austerity package in return for fresh bailout loans by the majority of the Greeks.
The calls were made after 61.31 percent of the Greek voters opposed an austerity package by the country’s international lenders.
In reaction to the results, Greek conservative opposition chief Antonis Samaras announced his resignation.
Following the call for an EU summit made by Merkel and Hollande, EU President Donald Tusk said on Twitter that the summit would be held on Tuesday evening “to discuss situation after referendum in Greece.”
Greek premier Tsipras, however, told the nation in a televised address that "Together we have written a bright page in modern European history."
About 38.70 percent voted ‘Yes’ in the referendum to accept fresh bailout loans from the European Commission, the European Central Bank (ECB), and the International Monetary Fund (IMF).
In a short statement, the European Commission showed respect to the decision made by the Greeks in rejecting the bailout loans.
“The European Commission takes note of and respects the result of the referendum in Greece,” the statement read.
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