By RICHARD ESPOSITO and BRIAN ROSS
FBI and DEA agents have disrupted a plot to commit a "significant terrorist act in the United States" tied to Iran, federal officials told ABC News today.
The officials said the plot included the assassination of the Saudi Arabian ambassador to the United States, Adel Al-Jubeir, with a bomb and subsequent bomb attacks on the Saudi and Israeli embassies in Washington, D.C.
Bombings of the Saudi and Israeli embassies in Buenos Aires, Argentina, were also discussed, according to the U.S. officials.
The stunning allegations come against a backdrop of longstanding tensions between Iran and the United States and Saudi Arabia. In the last year, Saudi Arabia has attempted to build an anti-Iran alliance to push back against perceived aggression by Iran in the region.
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The State Department has listed Iran as a "state sponsor" of terror since 1984. Officials in Argentina have said Iran was behind an attack on the Israeli embassy in Buenos Aires in 1992.
The new case, called Operation Red Coalition, began in May when an Iranian-American from Corpus Christi, Texas, approached a DEA informant seeking the help of a Mexican drug cartel to assassinate the Saudi ambassador, according to counter-terrorism officials.
The Iranian-American thought he was dealing with a member of the feared Zetas Mexican drug organization, according to agents.
The DEA office in Houston brought in FBI agents as the international terror implications of the case became apparent.
The Iranian-American, identified by federal officials as Manssor Arbabsiar, 56, reportedly claimed he was being "directed by high ranking members of the Iranian government," including a cousin who was "a member of the Iranian army but did not wear a uniform," according to a person briefed on the details of the case. Counter-terrorism officials said they believe the cousin may be part of the special operations unit of the Revolutionary Guard, the Quds force.
U.S. officials said Arbabsiar met twice in July with the DEA informant in the northern Mexico city of Reynosa, across the border from McAllen, Texas, and negotiated a $1.5 million payment for the assassination of the Saudi ambassador. As a down payment, officials said Arbabsiar wired two payments of $49,960 on Aug. 1 and Aug. 9 to an FBI undercover bank account after he had returned to Iran.
Federal agents said the DEA and the FBI recorded a number of meetings and phone calls between the informant and Arbabsiar, some of them from Iran.
Officials said Arbabsiar flew from Iran through Frankfurt, Germany, to Mexico City Sept. 28 for a final planning session, but was refused entry to Mexico and put on a plane to New York, where he was arrested.
Arbabsiar, a naturalized U.S. citizen, expressed "utter disregard for collateral damage" in the planned bomb attacks in Washington, according to officials.
He also reportedly told the undercover DEA informant that his contacts in the Iranian government could provide "tons of opium" for the Mexican cartels, according to officials who have reviewed the case file.
Officials said Arbabsiar is now cooperating with prosecutors and federal agents in New York, where the case has been transferred.
Senior Justice Department officials in Washington are reported to still be closely reviewing the specific language to be used in any charging documents.
A spokesperson at the Saudi embassy in Washington, D.C., said she was unaware of the plot.