Several drones “have been successfully shot down by the country’s air defense, there are no reports of a missile attack for now,” Iran’s space agency spokesman Hossein Dalirian says on X.
The Fars news agency said “three explosions” were heard near the Shekari army airbase near Isfahan.
Iran’s local media also reported that nuclear facilities in Isfahan were “completely secure” after explosions were heard near the area.
“Nuclear facilities in Isfahan province are completely secure,” Tasnim news agency reports, quoting “reliable sources.”
Israel had said it would retaliate against Iran’s weekend attack, which involved hundreds of drones and missiles in retaliation for a suspected Israeli strike on its embassy compound in Syria. Most of the Iranian drones and missiles were downed before reaching Israeli territory.
Several Iranian nuclear sites are located in Isfahan province, including Natanz, centerpiece of Iran’s uranium enrichment program. Isfahan, Isome 350 kilometers (215 miles) south of Iran’s capital, Tehran, is also home to a major air base for the Iranian military.
Meanwhile in Iraq where a number of Iranian-backed militias are based, residents in Baghdad reported hearing sounds of explosions, but the source of the noise was not immediately clear.
In Syria, a local activist group said strikes hit an army position in the south of the country Friday.
“There were strikes on a Syrian army radar position,” said Rayan Maarouf, who runs the Suwayda24 anti-government website that covers news from Sweida province in the south.
Iranian military positions in Syria had been frequently targetted by Israeli air strikes over the past years. Early this month, an Israeli strike demolished a consular building annex of the Iranian Embassy in Sydia’s capital Damascus, killing 13 people, including two generals of Iran’s Revolutionary Guards, triggering the Iranian missiles and drones attack on Israel on April 13.
At the United Nations Security Council on Thursday, Iran urged member nations that Israel “must be compelled to stop any further military adventurism against our interests” as the UN secretary-general warned that the Middle East was in a “moment of maximum peril.”
Analysts and observers have been raising concerns about the risks of the Israel-Gaza war spreading into the rest of the region.
Oil prices and jumped on the reports of the Israeli strike. Brent crude futures rose 2 percent to $88.86 a barrel, the dollar gained broadly, gold rose 1 percent and S&P 500 futures dropped 1 percent.
Israel’s assault on Gaza began after Palestinian Islamist group Hamas attacked Israel on Oct. 7, killing 1,200, according to Israeli tallies.
Israel’s military offensive has killed over 33,000 Palestinians in Gaza, according to the local health ministry.
Iran-backed groups have declared support for Palestinians, launching attacks from Lebanon, Yemen and Iraq.