The U.S. ambassador to Honduras, Hugo Llorens, urged Honduras' ousted President Manuel Zelaya and de facto President Roberto Micheletti on Friday to resume their dialogue in an attempt to save the Tegucigalpa-San Jose Agreement.

"There are differences between both sides, but I think the idea is to come back to the table to achieve the enforcement of the agreement," Llorens said.

Llorens made this remark after Zelaya said Friday that the agreement had failed because of Micheletti's attempts to boycott the political agreement.

Meanwhile, from the de facto government's point of view, Zelaya had not fulfilled the agreement because he did not present his proposals to form a government of unity.

According to the Tegucigalpa-San Jose Accord, signed by both parties last week, the two sides would form a unity government by Nov. 5, while the National Congress would decide whether to restore Zelaya to the presidency.

On Thursday night, the de facto ministers resigned to allow the formation of a cabinet of unity, which Zelaya has rejected saying it did not foresee his restitution.

The opinion divide between the two rivals has also intensified the feeling of insecurity among Hondurans.

The Honduran political crisis was ignited by a military-backed coup, in which President Zelaya was ousted and forced to go to Costa Rica on June 28. Later that day, Congress Speaker Roberto Micheletti was sworn in as interim president.

Honduras is scheduled to hold presidential elections on Nov. 29. The international community has called for a restoration of Zelaya's presidency before the election.