More airplanes have been re-routing through the Caucasus since Saturday's strikes on Iran.
Azerbaijan closed part of its airspace after an airport was hit by a drone on Thursday.
It's the latest country to be dragged into the conflict.
Anarrow flight corridorthat's become vital to airlines is shrinking as the Iran conflict expands.
On Thursday, Azerbaijan's foreign ministry said that Iranian drones attacked the Nakhchivan Autonomous Republic. It's an exclave to the north of Iran, which is separated from the rest of Azerbaijan by Armenia.
One drone damaged the terminal at Nakhchivan Airport, and another fell near a school building, the ministry said. Two civilians were injured, it added.
As a result, Azerbaijan closed the southern sector of its airspace.
It leaves airplanes flying between Europe and Asia with an even smaller space to navigate.
Since the US and Israel launchedstrikes against Iranon Saturday, airlines have been unable to fly over the Persian Gulf, which was previously the main route.
Instead, they have been rerouting through Saudi Arabia or the Caucasus. The region consists of Armenia, Georgia, and Azerbaijan, and links the Black Sea with the Caspian Sea. It is bordered by Iran and Turkey to the south, and Russia to the north.
Source: Drudge Report
