Turkey seized the cargo of an Iranian plane bound for Syria in March because the shipment violated UN sanctions. The Turkish media reported that an Iranian Yas Air freight plane, which was bound for the Syrian city of Aleppo, was allowed to pass through Turkish airspace only on condition that it made a "technical stop" at Diyarbakir airport in south-east Turkey. On March 21, Turkish officials found that equipment listed as "auto spare parts" on the plane's documents were a consignment of weapons, including assault rifles, machine guns and mortars.