Greece's former leader Alexis Tsipras has opened the door to a coalition with rivals on the left should his Syriza party fail to win a majority in elections in two weeks' time.
Angry protesters greeted top EU officials visiting the Greek island of Kos on Friday to see the impact of the migrant crisis.
Europe is facing an "unprecedented humanitarian and political crisis" as it struggles with the huge influx of refugees and migrants, the European Commission's vice-president Frans Timmermans said.
Greece's ex-prime minister Alexis Tsipras called for voters in upcoming snap elections to give his radical left Syriza party a "strong mandate" to lead the crisis-hit nation.
Greece geared up for a snap election next month, with an opinion poll showing the leftist party Syriza ahead despite a wave of defections over the country's massive new bailout.
Greece's top judge became the country's first female prime minister, taking over a caretaker administration to organise early elections next month.
A breakaway eurosceptic faction of Greece's Syriza party was to attempt to form a government as the country headed for a likely September 20 snap ballot.
Rebels from Greece's Syriza party on Friday formed a breakaway parliamentary group after Prime Minister Alexis Tsipras resigned.
Macedonia said it would allow a limited number of "vulnerable" migrants to enter the country after sealing its border with Greece to them, leaving thousands of refugees stuck in no-man's land.
Greek Prime Minister Alexis Tsipras has proposed calling an early election in the crisis-hit country on September 20, the ANA news agency said.
Kazakhstan has been put on the map of the world's riskiest sovereign debt by Bank of America Merrill Lynch. Really?
Greece has repaid 3.4 billion euros ($3.79 billion) due to the European Central Bank, a source close to the Greek government said after the launch of a massive new reforms-for-bailout deal.
Greek Prime Minister Alexis Tsipras asked that the European Parliament (EP) join the group of creditors overseeing the recently-approved bailout deal.
Dutch Prime Minister Mark Rutte received a grilling in parliament for his cabinet's support for debt-ridden Greece's third international bailout.
Spanish lawmakers overwhelming approved Greece's third bailout package following a debate in parliament which the ruling party used to defend its economic record.
German Chancellor Angela Merkel and her hardline Finance Minister Wolfgang Schaeuble on Sunday hailed a dramatic change in Greece's approach to its debt crisis.
Eurozone finance ministers approved Friday a third debt bailout worth up to 86 billion euros to keep Greece afloat and avoid its chaotic exit from the single currency bloc.
Greek Prime Minister Alexis Tsipras warned that a German proposal to give his debt-ridden country a bridging loan rather than agree a new bailout would be "a return to a crisis without end".
Greece has reached a deal on a multi-billion bailout with its international creditors after marathon talks.
The United Nations warned that migrants landing in Greece were facing "shameful" conditions, with the crisis-hit country claiming it was unable to cope with the massive influx on its Aegean islands.
- European Commission
- European Central Bank