The tense situation is forcing some airlines to suspend flights over the region.
Australian airline Qantas said Friday it was adjusting its flight paths over the Middle East to avoid the Strait of Hormuz and Gulf of Oman until further notice.
A spokesperson said the changes will affect flights between Australia and London, but added that "the impact on flying time will be negligible.”
Dutch carrier KLM also announced changes to its flights over the region following the shooting down of a US drone Thursday.
The US Federal Aviation Administration has put restrictions on US airlines flying over the Gulf of Oman, amid the increased political tensions in the region.