Buenos Aires, Argentina ? The bomber who detonated a van packed with explosives outside a Jewish community center in 1994, killing 85 people in Argentina’s worst terrorist attack, has been identified as a Hezbollah militant, a prosecutor said Wednesday.

Prosecutor Alberto Nisman said in a statement that Ibrahim Hussein Berro, a Lebanese citizen and member of the Iranian-backed Hezbollah, carried out the attack that leveled the community center in downtown Buenos Aires.

Leaders of Argentina’s Jewish community have alleged that Iran had organized the attack. Iran has repeatedly denied the accusation.

Nisman said there are several lines of investigation, “including the hypothesis of help from Iran.”

The prosecutor said investigators believe the 21-year-old Hussein Berro entered Argentina through the Tri-Border Region, a center of smuggling near the joint borders of Argentina, Paraguay and Brazil.

The rigged van exploded July 18, 1994, outside the Argentine Israeli Mutual Aid Assn., leveling the seven-story building, a symbol of Argentina’s more than 200,000-strong Jewish population.