Tehran: Iran has suspended flights over several cities including the central city of Isfahan, where state media earlier reported explosions were heard near its airport.
"Flights over Isfahan, Shiraz and Tehran cities have been suspended," state media reported.
Tehran's Imam Khomeini International Airport was closed to all flights until 0700 GMT, according to a notice to airmen posted on a U.S. Federal Aviation Administration database.
Some Emirates and Flydubai flights that were flying over Iran early on Friday made sudden sharp turns away from the airspace, according to flight paths shown on the tracking website Flightradar24.
Media reports claim Israel launches drone strike on Iran
Earlier today, ABC News first reported, citing a US official, that Israeli missiles have hit a site in Iran, while Iranian state media reported an explosion in the centre of the country. The report came days after Iran launched a drone strike on Israel.
Local media, Iran's Fars news agency, also claimed an explosion was heard at an airport in the central city of Isfahan but the cause was not immediately known. As a precautionary measure, Iran suspended flights over the cities of Isfahan, Shiraz and Tehran, state media reported.
Iran denies missile attack
However, later, in a major turn of events, an Iranian official told the news agency Reuters that there was no "missile" attack on Tehran. It said that the explosion heard in the Isfahan was a result of the activation of Iran's air defence system.
Israel tells US it plans to attack Iran in next two days: Report
Meanwhile, the Times of Israel quoting Bloomberg, reported two unnamed US officials, saying Israel gave the US a heads-up Thursday that it planned to attack in the next day or two. As of writing this article, there was no confirmation from the Israeli Defence Forces or Prime Minister Benjamin Netanyahu's Office over the recent development. An Israeli media reported that neither IDF nor PMO would address any press conferences today.