The decision comes after escalating tensions between the U.S. and Iran. Leszek Szymański/PAP

All LOT Polish Airlines flights previously scheduled to fly through Iranian airspace will have their routes changed, acting LOT spokesperson Michał Czernicki told PAP on Saturday.

The changes concern LOT connections from Warsaw to India, Singapore, Bangkok and Sri Lanka.

Czernicki said all flights that were previously planned to fly through Iran's airspace would fly along changed routes and assured that the route changes would not significantly affect the regularity of the flights or their duration.

"Safety is a priority for LOT Polish Airlines. We are constantly monitoring the situation in Iran. We are in contact with the Polish Ministry of Foreign Affairs," he added.

The decision comes after escalating tensions between the U.S. and Iran. Iranian Major-General Qassem Soleimani, Iran's top security and intelligence commander, was killed on Friday at Baghdad International Airport in a drone strike authorised by US President Donald Trump.