In her first public comments since the mysterious death of a prosecutor rocked Argentina, President Cristina Fernandez is calling on Congress to dissolve the country's current intelligence services.

Fernandez said Monday night that reforming the intelligence services was a "national debt" the South American country has had since the return of democracy in 1983.

Alberto Nisman, 51, was found dead Jan. 18 in the apartment, the day before he was scheduled to elaborate on explosive allegations that Fernandez shielded Iranian officials suspected in the largest terrorist attack in the South American country's history.

In two letters this week, Fernandez suggested that Nisman's death was a plot against her government possibly orchestrated by intelligence services. Monday's comments were the first time she has spoken publicly about it.