On October 18, bomb threats were made against the American and Israeli embassies in Argentina.
AFP correspondents saw the evacuation of the Israeli embassy in Buenos Aires, which is close to the president.
Unnamed police sources acknowledged that the embassy had received a threat via email to its diplomatic office.
The US embassy in the affluent Palermo suburb also got a threat; an AFP correspondent observed staff members waiting outside before authorities permitted them to go inside.
With more than 250,000 Jews living there, Argentina boasts the highest Jewish population in all of Latin America.
Attacks against the Jewish community there have left 300 people injured and 85 dead, such as the 1994 bombing of a Jewish center.