No Iranian official directly acknowledged the possibility that Israel attacked, and the Israeli military did not respond to a request for comment. However, tensions have been high since the Saturday assault on Israel amid its war on Hamas in the Gaza Strip and its own strikes targeting Iran in Syria
US officials declined to comment as of early Friday, but American broadcast networks quoting unnamed US officials said Israel carried out the attack. The New York Times quoted anonymous Israeli officials claiming the assault, which came on Iranian Supreme Leader Ayatollah Ali Khamenei's 85th birthday. Israeli politicians also made comments hinting that the country had launched an attack
Air defence batteries fired in several provinces over reports of drones being in the air, state television reported. Iranian army commander Gen. Abdolrahim Mousavi said crews targeted several flying objects
"The explosion this morning in the sky of Isfahan was related to the shooting of air defence systems at a suspicious object that did not cause any damage," Mousavi said. Others suggested the drones may be so-called quadcopters four rotor, small drones that are commercially available
Authorities said air defences fired at a major air base in Isfahan, which long has been home to Iran's fleet of American-made F-14 Tomcats ¿ purchased before the 1979 Islamic Revolution
Tasnim also published a video from one of its reporters, who said he was in the southeastern Zerdenjan area of Isfahan, near its "nuclear energy mountain." The footage showed two different anti-aircraft gun positions, and details of the video corresponded with known features of the site of Iran's Uranium Conversion Facility at Isfahan.
"At 4:45, we heard gunshots. There was nothing going on," he said. "It was the air defence, these guys that you're watching, and over there too"
The facility at Isfahan operates three small Chinese-supplied research reactors, as well as handling fuel production and other activities for Iran's civilian nuclear program
Isfahan also is home to sites associated with Iran's nuclear program, including its underground Natanz enrichment site, which has been repeatedly targeted by suspected Israeli sabotage attacks
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