DUBAI: The US on Friday barred American-registered aircraft from flying over parts of the Arabian Gulf and the Gulf of Oman amid heightened tensions after Iran's Revolutionary Guard shot down a US military drone.
The announcement from the Federal Aviation Administration came over an Iranian surface-to-air missile on Thursday bringing down the US Navy RQ-4A Global Hawk, an unmanned aircraft with a wingspan larger than a Boeing 737 jetliner and costing over $100 million.
The FAA previously warned commercial aircraft of the possibility of Iranian anti-aircraft gunners mistaking them for military aircraft, something dismissed by Tehran some 30 years after the US Navy shot down an Iranian passenger jet.
The FAA said this would affect the area of the Tehran Flight Information Region.
There are "heightened military activities and increased political tensions in the region, which present an inadvertent risk to US civil aviation operations and potential for miscalculation or misidentified," the FAA said. "The risk to US civil aviation is demonstrated by the Iranian surface-to-air missile shoot down of a US unmanned aircraft system on 19 June 2019 while it was operating in the vicinity of civil air routes above the Gulf of Oman."
There was no immediate reaction in Iran to the announcement.
Iran said the drone "violated" its territorial airspace, while the US called the missile fire "an unprovoked attack" in international airspace over the narrow mouth of the Arabian Gulf and President Donald Trump tweeted that "Iran made a very big mistake!"
Trump later appeared to play down the incident, telling reporters in the Oval Office that he had a feeling "a general or somebody" being "loose and stupid" made a mistake in shooting down the drone.
The incident immediately heightened the crisis already gripping the wider region, which is rooted in Trump withdrawing the US a year ago from Iran's 2015 nuclear deal and imposing crippling new sanctions on Tehran. Recently, Iran quadrupled its production of low-enriched uranium to be on pace to break one of the deal's terms by next week while threatening to raise enrichment closer to weapons-grade levels on July 7 if Europe doesn't offer it a new deal.
Citing unspecified Iranian threats, the US has sent an aircraft carrier to the Middle East and deployed additional troops alongside the tens of thousands already there. All this has raised fears that a miscalculation or further rise in tensions could push the US and Iran into an open conflict 40 years after Tehran's Islamic Revolution.
"We do not have any intention for war with any country, but we are fully ready for war," Revolutionary Guard commander Gen. Hossein Salami said in a televised address Thursday.