French President Francois Hollande says he will huddle with his German and Greek counterparts to pave the way for a special eurozone meeting of finance ministers late this month or early June about Greece's bailout woes.

Hollande said at the opening of the Eastern Partnership summit that he will join Chancellor Angela Merkel late Thursday for a friendly discussion with Greek Prime Minister Alexis Tsipras "where we need to draft solutions" to be worked out later by the eurozone ministers.

The meeting comes a day after a leading official from Tsipras' party said that Greece will not be able to repay a loan to the International Monetary Fund early next month unless a deal is reached with its creditors to unblock bailout funds.