The planes were paid for at least in 2017. The Russian Federation was supposed to deliver the planes in 2023, but Iran has not yet received a single plane from Moscow.
Iranian officials are "stunned" by Russia's failure to fulfill its obligations and doubt that the supply can be fulfilled at all.
Analysts added that Israel could persuade Russia not to supply Iran with aircraft and other weapons.
Meanwhile, Russian mass media reports that Brazil plans to purchase a test batch of Russian barrage ammunition, Lancet.
