German Foreign Minister Guido Westerwelle on Thursday praised the course of reforms in Greece, although he declined to comment over speculation regarding any extension of the repayment period of Greece's debt and a repurchase of Greek bonds.

"I praise the reforms that have been put on track in Greece as well," Westerwelle told the ANA-MPA, during a briefing of foreign correspondents here.

"We have repeatedly acknowledged this, and I am doing it now," he added.

Regarding the Greek debt crisis, Westerwelle said that "a debt crisis can not be handled in the short run through new lending possibilities."

As regards a possible extension of the repayment period of Greece's debt and a repurchase of Greek bonds, the German minister declined to comment, merely saying "we are in phase of talks on all issues ... conjecture does not contribute to stabilisation."

"I will not take part in a public debate concerning such conjectures."