Green card and visa holders were reported to be blocked from boarding US-bound flights within hours of Donald Trump issuing an executive order limiting immigration from several Muslim countries, according to different sources.

US airports were also said to have ordered some passengers who had managed to board flights to return to their point of origin, according to the Arab-American anti-discrimination committee (ADC).

There have been already reactions from Iran. However the ban on US tourists will be more a measure against Iran’s own economy, than against the  American travellers who were not so keen on Iran as a leisure destination.