The US government is openly pursuing a project for meddling in Iran's internal affairs, Larijani said in a local ceremony.
According to IRNA he noted that people should preserve their unity and stand against the US.
The US president announced in early May that Washington would pull out of Iran nuclear deal and reinstate sanctions, which had been lifted under the accord.
The first round of the sanctions snapped back into place in August, with the second round, targeting the energy and oil sectors that took effect on November 5.
This is while other signatories to the deal (i.e. Britain, France, Germany, China and Russia) have thus far criticized Washington's unilateral move and repeatedly renewed their commitment to the deal.
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