A week after the mysterious death of prosecutor Alberto Nisman, a man who was investigating the 1994 bombing of a Jewish center in Buenos Aires, Jewish groups in Argentina have decided to boycott the government's Holocaust commemorations.

Nisman’s death has been at the center of much speculation, as he had formally accused the government of covering up an Iranian connection to the bombing incident in which 85 people lost their lives.

According to BBC, some Jewish leaders feel the Argentine government has lost focus on the investigation of the bombing and have voiced their frustration with a long televised address given by Argentine President Cristina Fernandez de Kirchner in which, according to them, the president displayed little sympathy over the death of Nisman or, for that matter, the victims of the 1994 attack.

Fernandez has dismissed the accusation being a cover up involving Iran. She insists that Nisman might very well have been given false information and been manipulated by Argentina's intelligence agency in an effort to conspire against and undermine the government.

Via a television address, Fernandez announced on Monday her immediate plans to disband Argentina's intelligence agency; she intends to draft a new bill in order to set up a new body for the intelligence agency.

Fernandez met with family members of the victims of the attack on the Jewish cultural center in her official residence before the commencement of the official Holocaust commemorations.

Outside of Israel, Argentina has one of the largest Jewish communities in the world.

Jewish journalist Damian Pachter, the man who first reported on the death of special prosecutor Nisman, recently fled Argentina for Israel, in fear for his life.

“Argentina has become a dark place led by a corrupt political system. I still haven’t figured out everything that has happened to me over the past 48 hours. I never imagined my return to Israel would be like this," he told Israeli newspaper Haaretz.