Pakistan will ban Indian carriers from flying at lower altitudes near Lahore and Karachi during October as a result of "operational reasons", the Times of India reports.

A Notice To Airmen (NOTAM) has been issued by the Pakistan Civil Aviation Authority (PkCAA) prohibiting all Indian commercial carriers from flying below 29,000 feet in Lahore’s airspace and 33,000 feet in Karachi’s airspace from October 8 for thirteen days. It has been suggested the ban may have been imposed as a result of military maneuvers and exercises, however, tensions between Pakistan and India have risen recently over violence in Kashmir. Currently, no Indian carrier offers scheduled passenger flights to Pakistan.

In September, India said it was reviewing its Bilateral Air Services Agreement (BASA) with Pakistan, which could result in Pakistani carriers being banned from entering Indian airspace. The last time similar action was taken was in 2002, when both India and Pakistan banned airlines from each other’s countries from entering their respective airspace in a tit-for-tat move.