In 1987–88, Argentina's National Atomic Energy Commission signed an agreement with Iran to help in converting the reactor from highly enriched uranium fuel to 19.75 percent low-enriched uranium, and to supply the low-enriched uranium to Iran. According to a report by the Argentine justice in 2006, during the late 1980s and early 1990s the US pressured Argentina to terminate its nuclear cooperation with Iran, and from early 1992 to 1994 negotiations between Argentina and Iran took place with the aim of re-establishing the three agreements made in 1987–88. Some have linked attacks such as the 1992 attack on Israeli embassy in Buenos Aires and the AMIA bombing as part of an Iranian campaign to pressure Argentina into honoring the agreements. The uranium was delivered in 1993.