The alleged Israeli strike on an advanced weapons-production facility in Iran "achieved its goals," the Wall Street Journal reported Monday quoting officials familiar with the matter.
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Sources said that the early Sunday morning attack was carried out by the Mossad intelligence agency using drones. It targeted a Defense Ministry site in Isfahan in central Iran, hitting a building in four different areas with precision strikes. They denied claims that satellite photos showed what appeared to be minor damage to the site and said that the mission was a success.
Iranian media reported that the strike on the compound was carried out by three drones, all of which were intercepted.
US and other officials told the Wall Street Journal that the strike was an apparent attempt by Israel to use new means to thwart Iran's military and nuclear ambitions.
Sources said the targeted site stands across the street from the Iran Space Research Center, which has been sanctioned by the United States for working on Iran's ballistic-missile program.
It houses the Institute for Materials and Energy, which conducts research that could be used for testing the nuclear project, Israeli intelligence analyst Ronen Solomon told the Wall Street Journal.
Officials compared Sunday's operation to last year's quadcopter drone attack on Iranian drone production sites in the western city of Kermanshah.