Iranian media reported explosions, but an Iranian official told Reuters those were caused by air defense systems. State media said three drones over the central city of Isfahan had been shot down.

Israel launched an attack on Iranian soil on Friday, sources said, in the latest tit-for-tat exchange between the two countries, Reuters reports.

Iranian media reported explosions, but an Iranian official told Reuters those were caused by air defense systems. State media said three drones over the central city of Isfahan had been shot down.

Israel''s leadership and the military were silent early on Friday.

The United States received notification before Israel''s attack, a source familiar with the situation told Reuters, which came days after Iran launched an unprecedented strike. Most of those were shot down.

Washington and other global powers had pressed Israel not to respond, or to ensure any further retaliation. The violence was sparked by the air strike on the Iranian embassy compound in Damascus on April 1 that was blamed on Israel.

That strike came against the backdrop of Iran''s support for the Palestinian Hamas militant group, whose assault on Israel on October 7 triggered Israel''s invasion of Gaza.

Iranian state TV said on Friday that shortly after midnight "three drones were observed in the sky over Isfahan. The air defense system became active and destroyed these drones in the sky."

Senior army commander Siavosh Mihandoust was quoted by state TV as saying air defense systems had targeted a "suspicious object".

Iranian President Ebrahim Raisi had warned Israel before Friday''s strike that Tehran would deliver a "severe response" to any attack on its territory.

Iran told the United Nations Security Council on Thursday that Israel "must be compelled to stop any further military adventurism against our interests" as the U.N. secretary-general warned that the Middle East was in a "moment of maximum peril."

Iran''s state television said nuclear facilities where Iran has been conducting work - which Tehran says is peaceful but which the West believes is aimed at building a weapon - were unharmed.

The Natanz nuclear site, the centrepiece of Irans uranium enrichment program, is in Isfahan province.

Iran closed its airports in Tehran, Shiraz and Isfahan after the attack and cleared flights from the western portion of its airspace for a few hours after the attack, according to FlightRadar24. By 0445 GMT the airports and airspace had reopened.

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