Former UN-Arab League envoy Kofi Annan to Syria says it is too late for military intervention there and that arming President Bashar Assad's foes will not end the two-year-old crisis, Reuters reported.

Annan, who resigned in August blaming "finger-pointing" at the United Nations Security Council for the impasse in his mediation, called for a political solution based on an agreement reached by world powers in Geneva in June.

"I don't see a military intervention in Syria. We left it too late. I'm not sure it would not do more harm," he told the Graduate Institute in Geneva on Tuesday, March 26 night.