"Since the beginning of the (1979) Islamic Revolution, the enemy has not stopped threatening and keeps making threats (against the country," Shamkhani told the Tasnim News Agency.
"However, we should know that the scope of their threats does not go beyond the level of media outlets (and propaganda)," he went on to say.
His remarks came as certain Western countries have threatened time and again that all options, including military option, are on the table regarding the nuclear issue.
Senior Iranian officials have slammed the belligerent rhetoric, stressing that these are empty threats.
Meantime, diplomats from Iran and the Group 5+1 (Russia, China, US, Britain, France, and Germany) are engaged in tight diplomatic meetings in the Austrian capital of Vienna to clinch a lasting deal on Tehran's nuclear energy program.
Over the past two weeks, they have three times extended deadlines for completing a long-term nuclear agreement.