Negotiating teams looking for a way out of the Honduran crisis have been unable to break the deadlock over deposed President Zelaya’s return to his country.
They have been talking around the clock at negotiations brokered by Costa Rica’s President Arias.
One proposal was Mr Zelaya, who was ousted in a coup, to be allowed to return to head a reconciliation government.
Mr Arias has also proposed an amnesty for political crimes committed before and after the 28 June coup.
But there was no progress.
President Arias said: “ Certainly there a big differences. We must make an effort to be flexible to reconcile the views of both sides.”
Meanwhile Zelaya supporters have taken to the streets of the Honduran capital demanding their leader be allowed to return home.
The Honduran military has been put on alert and observers fear violence if Zelaya tries to return in defiance of interim leader Micheletti’s threats to arrest him.