A judge has ordered the arrest of former Argentinian President Cristina Fernández de Kirchner; she's accused of covering up Iranian involvement in the 1994 bombing of a Jewish center.
Nisman, who was investigating the AMIA bombing, alleged Kirchner had covered up the role of Iranian officials in the attack.
The charges largely stem from a case filed by special prosecutor Alberto Nisman, whose mysterious death from a gunshot wound - hours before he was set to testify before Congress in January 2015 - had rocked Argentina at the height of Ms. Fernandez's power.
Fernandez has described the accusations as "absurd" and said that seeking to normalize diplomatic relations with another state isn't a crime.
Years after the attack on the Asociación Mutual Israelita Argentina (AMIA), Kirchner was accused of having struck a deal with Iranian officials to grant those responsible for the bombing immunity in exchange for oil, the Telegraph reports.
Fernandez, who was sworn in as a national senator last week, already faces several charges of graft.
Fernandez said on December 7 that the deal with Iran "was an act of foreign policy that can not be prosecuted".
Fernandez was Argentina's president from 2007 to 2015. Argentine prosecutors have alleged the attack was ordered by the government of Iran.More news: Israel strikes Gaza after rocket fire
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Bonadio charged that the former Argentinean officials and the Muslim activists had been involved in this "criminal plan".
In a press conference Thursday at the parliament in Buenos Aires, Kirchner was indignant.
"The case was absolutely paralysed because Iran does not extradite its compatriots. What we did was to act within the framework of global law", she said. Right before Nisman was to present his findings to the Argentine Congress, he was found dead.
The Senate, which is due to convene on Dec 10, will now have to consider a vote on lifting her immunity at the judge's request, for which a two-thirds majority is needed. Iran denies any involvement.
Jewish center in Buenos Aires, that was carried out by a member of Hezbollah, killed 85 victims.
Kirchner, who has long claimed her legal woes are politically motivated, accused center-right President Mauricio Macri of "manipulating" the justice system to discredit her.
The Jewish centre bombing case is the most serious for Kirchner, who is facing trial in several other cases involving corruption and money-laundering stemming from her years as president.