Greek Prime Minister Alexis Tsipras announced his resignation on Thursday and called for early elections in the crisis-hit country, widely expected to be held on September 20.
"I will shortly meet with the president of the republic and present my resignation and that of my government," Tsipras said in a televised address to the nation.
The move comes with the leftist leader facing a rebellion in his governing Syriza party over austerity measures demanded in a massive new international bailout worth about 86 billion euros over three years.
Government sources cited by the official news agency ANA said earlier he had proposed elections on September 20.
"I want to submit to the Greek people everything I have done (since taking office in January) so that they can decide once more," Tsipras said.
His announcement came after debt-crippled Greece paid a huge debt to the ECB on Thursday, effectively starting its third international rescue package in five years.