Greek Prime Minister Alexis Tsipras has had a conference call with the leaders of France and Germany to discuss progress in the talks between Athens and its lenders, officials say.

The Sunday evening call with French President Francois Hollande and German Chancellor Angela Merkel, the second in three days, lasted 35 minutes, "went very well" and it was agreed that a deal must be completed very soon, the officials said.

The German government described the conversation as constructive but gave no further details.

Similar optimistic statements emanating from Greek officials in the past few days about "technical talks" in Brussels hadn't been echoed by other parties.

Tsipras is meeting with Finance Minister Yannis Varoufakis to discuss the results of the conference call.