Several euro zone countries are due to vote on the third bailout for Greece this week after a 86 billion euro ($95 billion) deal was agreed in principle on Monday.

Eurogroup chairman Jeroen Dijsselbloem warned that the actions of Greek Prime Minister Alexis Tsipras had made it harder for euro zone leaders to win support for Greek aid.

"You have to realize that if we'd held referendums in the other 18 countries on whether we should give more money to Greece, the result would have been much more striking and more negative than the 60 percent who voted (against austerity) in Greece," Dijsselbloem said, according to a Reuters report.

Meanwhile, Tsipras told Greek TV that he did not believe in the bailout deal but had been presented with a "one-way street" by eurozone leaders. And German Finance Minister Wolfgang Schaeuble told reporters there was no question that the euro zone had lost credibility.

We'll keep you updated on all the latest news and views on the Greek debt crisis.