Zarif issued the statement after his US counterpart John Kerry threatened to use military action against Tehran if it fails to respect a historic nuclear deal sealed on 14 July.

"Unfortunately, the US secretary of state has spoken of the worn-out rope of 'the US capability to use military force'," Zarif said on Friday.

Noting that Kerry knows such words are empty threats and was told during the nuclear negotiations between Iran and the world powers that the Iranian nation stands up and resists against such moves, he said, "Such comments are related to the past century and he (Kerry) and other US officials have admitted many times that such threats don’t affect the Iranian people's resolve and will change the situation to their (the Americans') disadvantage."

"Therefore, it is better for the Americans to forget their old habit and leave the language of threats and sanctions against this great people once and for all," Zarif said.

He also referred to Kerry's remarks on the Iranian people's "Death to the US" slogan, and said Washington should find the root cause of such slogans in its hostile policies in the past decades.

The Iranian top diplomat also responded to Kerry's statement on Tehran's support for its regional allies, and said the Joint Comprehensive Plan of Action (JPCOA) is different from the UN Security Council Resolution 2231 and "the Islamic Republic of Iran will use all its possibilities to fight terrorism and extremism in the region".

He also underlined the Iranian officials' united stance on different issues, including relations with the US within the framework of the guidelines specified by Supreme Leader of the Islamic Revolution Ayatollah Seyed Ali Khamenei, and said the US had better avoid repeating its past mistake of sowing discord among the Iranian officials.

Iran and the world powers reached a final agreement in Vienna on July 14 to end a 13-year-old nuclear standoff.

After the agreement, the UN Security Council on Monday unanimously endorsed a draft resolution turning into international law the Joint Comprehensive Plan of Action (JCPOA) reached between Iran and the 5+1 (the US, Russia, China, Britain and France plus Germany) group of countries over the Islamic Republic’s nuclear program.

All 15 members of the UNSC voted for the draft UN resolution in New York, setting the stage for the lifting of Security Council sanctions against Iran.

The text of the draft UN resolution calls for the “full implementation” of the Vienna agreement “on the timetable established,” and urges UN member countries to facilitate the process.