An Argentine judge issued an international arrest warrant on Thursday for Iranian ex-president Akbar Hashemi Rafsanjani and other top Iranian officials in the 1994 bombing of a Jewish charity in Argentina that killed 85 people.
Judge Rodolfo Canicoba Corral asked the government of Iran as well as Interpol to hand over the former president on a warrant issued for "crimes against humanity" in the bombing attack on the Argentine Jewish Mutual Association, a Jewish charities federation office, in which 85 died and 300 were injured.
No one has ever been convicted for the bombing, Argentina's worst terrorist attack, which occurred at 9:53 am on July 9, 1994.
Lawyers for AMIA have long accused the Hizbullah in Lebanon of carrying out the attack.
Last November, an Argentine prosecutor charged that a member of Hizbullah, Ibrahim Hussein Berro, had carried out the suicide bombing. Hizbullah has denied the accusation.
Iran, a key backer of Hizbullah, also has denied allegations that it was involved in the blast.
No major progress in the case has been reported since last year's announcement and a succession of governments have been accused of botching or undermining the investigation.
President Nestor Kirchner has taken up the cause, as he has in many human rights cases stemming from Argentina's 1976-1983 military dictatorship.
Kirchner has said "grave failures of justice" had prevented the resolution of the case.
Members of the World Jewish Council, including chairman Israel Singer and president Edgar Bronfman have been in contact with Kirchner to pressure him for progress on the case.
Another attack in 1992 on the Israeli embassy, in which 22 were killed and 200 were wounded, also remains unsolved.