His peace plan failed to end Syria’s bloodshed.
Now in Geneva, where crisis talks could be held at the end of June, international mediator Kofi Annan insists that Iran must be part of any solution.
The Islamic Republic’s involvement is opposed by the US, UK and France but Annan says it should be at the table, with no time to lose.
“The longer we wait, the darker Syria’s future becomes,” the former UN Secretary-General told a news conference.
“This process cannot be open-ended. It is urgent that our consultations yield real results soon. Otherwise, I fear we are reaching the day when it will be too late to stop the crisis from spiralling out of control.
“The time to act is now,” added Annan, the UN-Arab League envoy to Syria.
Major-General Robert Mood, who heads the UN observer mission, told the news conference that his team is still trying to monitor the situation – despite his decision to suspend its mission amid the worsening violence.