Several flights from and to Sarajevo International Airport are cancelled due to dense fog.
Flights from Zagreb, Vienna and Istanbul were cancelled on Sunday evening, as well as flights to Zagreb and Vienna the morning after.
According to measurements taken by an air monitoring system installed at the US Embassy building in Sarajevo, the city was the most polluted in the world on Sunday afternoon.
Passengers can check on the status of their flights by calling the Sarajevo International Airport at +387 33/289-100.