In a safety bulletin, EASA warned that the presence of multiple weapon systems and heightened military readiness pose a serious risk to civil aviation.

“The presence and possible use of a wide range of weapons and air-defence systems, combined with unpredictable state responses and the potential activation of surface-to-air missile (SAM) systems, creates a high risk to civil flights operating at all altitudes and flight levels,” the agency said.

EASA added that Iran is expected to remain on elevated military alert nationwide. “Considering the overall high level of tensions, Iran is likely to maintain heightened alert levels for its air force and air defence units,” the statement said.

Meanwhile, Iran has warned neighbouring countries hosting US troops that American military bases would be targeted if Washington launches strikes against Tehran, a senior Iranian official told Reuters on Wednesday, as tensions rise over President Donald Trump’s threats to intervene in Iran’s unrest.

The warning was conveyed to several US allies in the region, including Saudi Arabia, the United Arab Emirates and Turkey, the official said, adding that Tehran had urged these countries to prevent Washington from taking military action.

The comments came as three diplomats told Reuters that some personnel had been advised to leave the US military’s Al Udeid Air Base in Qatar.

One diplomat described the move as a “posture change” rather than an ordered evacuation, noting there were no signs of a large-scale troop withdrawal like the one seen last year before Iran launched missiles at the base in retaliation for US airstrikes.

Trump has repeatedly threatened to intervene in support of protesters in Iran, where a US-based rights group says more than 2,400 people have been killed in a sweeping crackdown on one of the biggest waves of unrest since the 1979 revolution.

Iranian officials accuse the United States and Israel of fuelling the protests, branding demonstrators as terrorists.

According to an Israeli assessment shared with Reuters, Trump has decided to intervene, though the timing and scale of any action remain unclear.