Greek Finance Minister Yanis Varoufakis

Greek Finance Minister Yanis Varoufakis said Friday his country and its international creditors had "a duty" to reach an agreement on its bailout when eurozone finance ministers meet Saturday.

"There is no reason why there should not be an agreement at the Eurogroup tomorrow. We have a duty to find a solution," Varoufakis told Ant1 television, after Greece rejected a new proposal from the creditors.