On 18 July 1994, a suicide bomber drove a Renault Trafic van loaded with approximately 275 kilograms of ammonium nitrate and fuel oil explosive into the building housing the Asociación Mutual Israelita Argentina (AMIA), a Jewish community center in Buenos Aires. The blast destroyed the five-story brick masonry building, killing 85 people and injuring more than 300. It remains the deadliest terrorist attack in Argentine history. At the time, Argentina's Jewish community numbered around 200,000, the largest in Latin America.
The bombing came two years after a 17 March 1992 attack on the Israeli embassy in Buenos Aires, which killed 29 people. Investigators suspected a connection between the two attacks, though no one has been convicted for either.
The investigation was marked by prolonged allegations of mishandling and cover-up. Federal judge Juan José Galeano pursued a "local connection" theory, arresting Carlos Telleldín and around 20 Buenos Aires provincial police officers; however, a video later showed Galeano offering Telleldín money for evidence, leading to his removal from the case in 2003 and formal impeachment in August 2005 for "serious irregularities." On 2 September 2004, all suspects in the local-connection case, including four policemen, were acquitted for lack of evidence.
In 2006, prosecutors Alberto Nisman and Marcelo Martínez Burgos formally accused the Iranian government of directing the attack and the Lebanese militant group Hezbollah of carrying it out, alleging the motive stemmed from Argentina's suspension of a nuclear technology transfer contract with Iran — a claim later disputed. Arrest warrants and Interpol red notices were later issued for several Iranian officials and a Hezbollah operative, though none have been apprehended, and Iran and Hezbollah have denied involvement.
Subsequent Argentine governments faced accusations related to the case. In 2013, Argentina and Iran signed a memorandum of understanding to establish a "truth commission," which drew significant criticism from Jewish community organizations and was later declared unconstitutional by Argentine courts. Nisman, who opposed the memorandum, filed a complaint in January 2015 accusing President Cristina Fernández de Kirchner and others of attempting to cover up Iranian involvement. He was found dead in his home on 18 January 2015, hours before he was due to present his allegations to Congress; the case surrounding his death remains open. In 2018, judicial authorities announced Fernández de Kirchner would face trial on cover-up charges, which she has denied; a 2021 court ruling found no wrongdoing on her part, though a 2023 appellate ruling ordered her to be tried again.
In April 2024, the Argentine Court of Cassation ruled that Iran directed the attack and Hezbollah carried it out, characterizing Iran as a terrorist state and enabling victims' families to pursue compensation claims against Iran internationally. As of 2025, Argentina has announced plans to try ten Iranian and Lebanese nationals in absentia.