The United States and Israel on Friday accused Iran of plotting to assassinate Israel's ambassador to Mexico, in what would be the latest attempt to take the two countries' conflict to another region.
Israel said that Mexican authorities intervened to stop the attempt to kill the ambassador, Einat Kranz-Neiger.
"We thank the security and law enforcement services in Mexico for thwarting a terrorist network directed by Iran that sought to attack Israel's ambassador in Mexico," a statement from Israel's foreign ministry said.
A US official said that the Revolutionary Guards' elite Quds Force initiated the plot in late 2024 and that it was disrupted this year.
The plot allegedly included recruiting operatives out of Iran's embassy in Venezuela, whose leftist president, Nicolas Maduro, has a tactical alliance with Tehran.
"The plot was contained and does not pose a current threat," the US official said on condition of anonymity.
"This is just the latest in a long history of Iran's global lethal targeting of diplomats, journalists, dissidents and anyone who disagrees with them, something that should deeply worry every country where there is an Iranian presence."
The US official did not provide detailed evidence or say how the plot was contained.
Iran's embassy in Mexico rejected the claims.
"It is a media invention, a great big lie, whose objective is to damage the friendly and historic relations between both countries (Mexico and Iran), which we categorically reject," Tehran's embassy in Mexico posted on X.
There was no immediate comment from Mexico.
The alleged plot would have taken place after Israel on April 1, 2024 attacked the Iranian embassy complex in Damascus, then a close ally of Tehran, killing several top officers of the Revolutionary Guards.
That attack prompted vows of revenge by Iran, which fired missiles and drones against Israel.
Israel a year later carried out a much more extensive bombing campaign in Iran, which killed more than 1,000 people. The United States, Israel's main ally, joined by bombing key sites of Iran's contested nuclear programme.
Israeli intelligence has accused the Quds Force of plotting against Israeli and Jewish targets overseas.
Australia expelled Iran's ambassador over what it said was Iranian involvement in two arson attacks - against a synagogue in Melbourne and a kosher restaurant in Sydney.
Iran remains home to a historic Jewish community despite the hostility to Israel by the cleric-run government that took power with the 1979 Islamic revolution.
Mexico, also home to a major Jewish community, has recognised Israel since the early days of the state's existence.
Mexico, which favours non-intervention in international affairs, has taken a more cautious stance on the Gaza war than other leftist-led Latin American countries, backing an investigation into allegations of Israeli war crimes but maintaining diplomatic relations.